{Technical Field]
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`SHOES
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`The present disclosure relates to shoes, and more particularly, to shoes with improved
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`breathability that effectively releases sweat or moisture that occurs in the shoes.
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`[Background Art]
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`As humans walk with two feet, shoes have been used to protect feet, and in line with the
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`advancement of scientific technologies, new materials have been developed, and these days,
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`various types of shoes suiting for various activities such as home, walking, mountain, body
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`correction, and special exercise have been produced. These shoes are madenot only to protect
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`the feet of a person who wears them but also to pursue the convenienceofactivities performed in
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`a State in which the person wears shoes.
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`Here, a foot inserted into a shoe forms a distribution of about 500,000 sweat glands,
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`which occupies about 20% of a person’s total sweat holes, and is the area that secretes the most
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`sweat except for the forehead.
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`Accordingly, in the case of activities while wearing shoes, sweat is secreted up to about
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`12 times more than usual.
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`Therefore, although it
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`is
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`important
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`to protect
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`the wearer’s
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`feet and pursue the
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`convenience of wearing, if breathability is not secured, the shoes become sweaty due to heat
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`generated from the feet and foot odor occurs. Eventually, one of the important elements of
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`20
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`shoesis to solve the problemsby effectively releasing heat or sweat generated from the foot.
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`In order to solve this problem, in the related art, a technology of externally discharging
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`air through a shoeinsole by forming an air hole through which air may be discharged on the side
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`or bottom surface of an outer cover exposed to the outside has been proposed.
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`Therelated art
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`include, for example, Utility Model Registration No. 20-0192510 (Air discharge shoes), Patent
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`25
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`Laid-open Publication No. 10-2000-0035118 (Shoe Insole with air hose), and Patent Publication
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`

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`Registration No. 10-0470751 (Shoes capable of circulating air with outside). However, in these
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`related art, ventilation is performed through the bottom of the shoes or the side of the shoes, and
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`thus, water inevitably enters shoes in a case in which water gathers on the ground, which may be
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`fatal to shoes that require a waterproof function, such as boots.
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`Accordingly, the inventor of the present application have proposed dual-structure shoes
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`in which air holes are formed in an inner layer and an outer layer so that air may be discharged
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`through instep and ankle portions.
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`Such shoes were presented in Korean Patent Publication
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`Registration No. 10-1737910 (Breathable shoes having dual structure at Upper part), Korean
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`Patent Publication Registration No. 10-1711881 (Shoes having air permeability through tongue),
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`and Korean Patent Laid-open Publication No. 10-2017-0122645 (Breathable shoes having dual
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`structure at Upperpart), and, in addition, Korean Patent Registration No. 10-1767884 (Method
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`for manufacturing breathable boots) discloses a method of manufacturing such shoes.
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`[Disclosure]
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`[Technical Problem]
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`Therefore, an object of the present disclosure is to improve breathability of shoes.
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`Another object of the present disclosure is to improve user convenience by improving a
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`bending phenomenonofshoes.
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`Another object of the present disclosure is to increase convenienceofuse.
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`Another object of the present disclosure is to stably maintain a shape of shoes.
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`[Technical Solution]
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`According to an aspect of the present disclosure, there is provided shoes including: a
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`body having a foot insertion space into which user’s foot is inserted; an air passage portion
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`protruding from a front of the body to the outside and extending in a direction in which the body
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`extends; and a foot support portion located in a width direction of the air passage portion.
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`25
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`The shoes according to the above feature may further include an air passage located
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`

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`between the air passage portion and the foot support portion.
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`The foot support portion may be provided in plurality, and the plurality of foot support
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`portions may be located at determined intervals in a direction in which the air passage portion
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`extends.
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`The plurality of foot support portions may have different sizes.
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`The foot support portion may havea bar shapeor a band shape.
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`The foot support portion may be located in a width direction of the air passage portion.
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`The foot support portion may have a protrusion shape protruding from the inside of the
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`air passage portion.
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`The foot support portion may have a bar or band shape and may includeafirst foot
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`support portion located in the width direction of the air passage portion and a second foot support
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`portion having a protrusion shape protruding from the inside of the air passage portion.
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`The first foot support portion and the second foot support portion may be located to
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`correspond to each other.
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`The shoes according to the above feature may further include an insole located in the foot
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`insertion space.
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`The insole may include a plurality of moisture discharge portions.
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`Each of the plurality of moisture discharge portions may penetrate the insole in a
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`thickness direction of the insole.
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`20
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`The insole may further include a plurality of bottom protrusions located on a lower
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`surface of the insole.
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`The body may include a bottom portion on which the sole of the foot is positioned.
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`An uppersurface of the bottom portion facing the insole may include an uneven surface
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`having a concave portion and a convex portion.
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`25
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`The concave portion maybe located to correspond to the moisture discharge portion.
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`The body, the air passage portion, and the foot support portion may be formed of natural
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`rubber, synthetic rubber, or synthetic resin.
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`Fiber may beattached to a portion of the foot support portion adjacent to the user’s body.
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`According to another aspect of the present disclosure, there is provided shoes including: a
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`first body portion in which a portion of a front foot portion of a wearer is positioned; a second
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`body portion connected to the first body portion and in which the other remaining portion of the
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`front foot portion, a middle foot portion, and a rear foot portion of the wearer are positioned; a
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`cover seamlessly connected to the second body portion and protruding in an outward direction
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`from both edge portions; at least one protrusion protruding from an inner surface of the cover
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`and extending in a direction in which the second body portion extends, wherein a protruding
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`thickness of each protrusion decreases from an upper portion toward the first body portion.
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`Whenthe protrusion is provided in plurality, the plurality of protrusions may be spaced
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`apart from each other across the inner surface of the cover.
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`The shoes according to the above feature may further include a discharge passage located
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`between two adjacent protrusions to discharge sweat or odorinside the shoes.
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`A width of the discharge passage may be 0.5 cm to 3 cm.
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`Protrusion heights of different protrusions located at the same level may be the same or
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`different.
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`Whenthe protrusion heights of the different protrusions located at the same level are
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`20
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`different from each other, the protrusion height may increase from the edge portion of the cover
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`toward the center.
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`Extending lengths of two adjacent protrusions may be the sameor different.
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`The shoes according to the above feature may further include a shape support portion
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`located between an edge portion of the cover and an edge portion of the second body portion
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`25
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`adjacent to the edge portion of the cover and having a thickness greater than those of the cover
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`

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`and the second bodyportion.
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`The shape support portion may include: a main body located between the edge portion of
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`the second body portion and the edge portion of the cover adjacent to each other and facing each
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`other; and a support protrusion protruding from an inner surface of the main body.
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`A width of the main body maybe different depending on a position.
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`The width of the main body mayincrease in a direction from an upper end of the main
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`body toward a crutch portion in which a talus bone of the wearer’s foot is located and in a
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`direction from a lower end of the main bodyto the crutch portion of the wearer.
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`A thickness of the support protrusion may increase from an edge portion connected to the
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`second body portion toward the cover.
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`The shape support portion may further include an extension portion extending in a
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`direction intersecting the support protrusion from a lower end of the support protrusion.
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`A height of an outer surface of the extension portion may be higher than a height of outer
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`surfaces of the adjacent first and second bodyportions.
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`The shoes according to the above feature may further include an arrest protrusion located
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`on a rear outer surface of the second bodyportion.
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`The shoes according to the above feature may further include: an outer shoe surrounding
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`the shoes; and a protective member located between the outer shoe and the shoes and covering
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`the front foot portion of the shoes.
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`20
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`According to another aspect of the present disclosure, there is provided shoes including: a
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`first body portion in which a portion of a front foot portion of a wearer is positioned; a second
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`body portion connected to the first body portion and in which the other remaining portion of the
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`front foot portion, a middle foot portion, and a rear foot portion of the wearer are positioned; a
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`cover seamlessly connected to the second body portion and protruding in an outward direction
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`25
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`from both edge portions; at least one protrusion protruding from an inner surface of the cover
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`

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`and extending in a direction in which the second body portion extends, wherein a protruding
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`thickness of each protrusion decreases from an upper portion toward the first body portion.
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`Whenthe protrusion is provided in plurality, the plurality of protrusions may be spaced
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`apart from each other across the inner surface of the cover.
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`The shoes according to the above feature may further include a discharge passage located
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`between two adjacent protrusions to discharge sweat or odorinside the shoes.
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`A width of the discharge passage may be 0.5 cm to 3 cm.
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`Protrusion heights of different protrusions located at the same level may be the same or
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`different.
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`Whenthe protrusion heights of the different protrusions located at the same level are
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`different from each other, the protrusion height may increase from the edge portion of the cover
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`toward the center.
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`Extending lengths of two adjacent protrusions may be the sameor different.
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`The shoes according to the above feature may further include a shape support portion
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`located between an edge portion of the cover and an edge portion of the second body portion
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`adjacent to the edge portion of the cover and having a thickness greater than those of the cover
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`and the second bodyportion.
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`The shape support portion may include: a main body located between the edge portion of
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`the second body portion and the edge portion of the cover adjacent to each other and facing each
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`20
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`other; and a support protrusion protruding from an inner surface of the main body.
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`A width of the main body maybe different depending on a position.
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`The width of the main body mayincrease in a direction from an upper end of the main
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`body toward a crutch portion in which a talus bone of the wearer’s foot is located and in a
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`direction from a lower end of the main bodyto the crutch portion of the wearer.
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`25
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`A thickness of the support protrusion may increase from an edge portion connected to the
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`

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`second body portion toward the cover.
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`The shape support portion may further include an extension portion extending in a
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`direction intersecting the support protrusion from a lower end of the support protrusion.
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`A height of an outer surface of the extension portion may be higher than a height of outer
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`surfaces of the adjacent first and second bodyportions.
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`The shoes according to the above feature may further include an arrest protrusion located
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`on a rear outer surface of the second bodyportion.
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`The shoes according to the above feature may further include: an outer shoe surrounding
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`the shoes; and a protective member located between the outer shoe and the shoes and covering
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`the front foot portion of the shoes.
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`[AdvantageousEffects ]
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`According to embodiments of the present disclosure, since the air passage is located
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`inside the shoes, sweat, heat, or odor occurring in the shoes may be quickly and effectively
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`discharged, thereby improving a user’s foot health and providing an excellent fit of the shoes.
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`In addition, since the foot insertion space into which the foot is inserted in the shoes is
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`limited by the foot support portion located in the extending direction of the air passage portion in
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`which the air passage is formed, the foot insertion space is not increased in the air passage
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`portion protruding outward from a middle portion of the front of the shoes. Accordingly, a
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`phenomenonthat the shoes become loose when the user wears the shoes is prevented, thereby
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`20
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`improving wearing sensation of the shoes.
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`In addition, since the air passage portion extends from the body of the shoes and is
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`formed integrally, the shoes are easily and smoothly bent according to a user’s foot motion
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`without being interfered by the air passage portion, thereby improving convenience of the shoes
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`and wearing sensation of the shoes due to the weight reduction of the shoes.
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`In addition, since an insole for discharging sweat occurring in the shoes toward the
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`

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`bottom portion or collecting sweat is provided, the wearing sensation and hygiene of the shoes
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`are improved and foot health is also improved.
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`Since the air passage portion extends from the body of the shoes and is formed integrally,
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`the shoes are easily and smoothly bent according to a user’s foot motion without being interfered
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`by the air passage portion. Therefore, the air passage portion does not cause inconvenience of
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`using the shoes.
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`Since the protruding thickness of the protrusion located on the inner surface of the air
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`passage portion decreases toward the first body portion, pain or injury caused by the protrusion
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`contacting the instep is prevented.
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`In addition, since the shape of the shoes is easily and stably maintained by the shape
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`support portion located between the second body portion and the air passage portion, the shoes
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`are located very safely although the extending length of the second bodyportion is increased.
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`Therefore, wearer convenience may be improved whenputting on and taking off shoes.
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`[Description of Drawings]
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`FIG.
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`1
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`is a perspective view of shoes according to an embodiment of the present
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`disclosure.
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`FIG, 2 is a plan view of the shoes shownin FIG. 1.
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`FIG. 3 is a cross-sectional view taken alongline II-III of FIG. 1.
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`FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 1.
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`20
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`FIG. 5 is a cross-sectional view taken alongline II-III of FIG. 1 when a user wears shoes
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`according to an embodimentof the present disclosure.
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`FIG. 6 is a cross-sectional view taken along line II-III of FIG. 1, illustrating an example
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`of shoes according to another embodimentof the present disclosure.
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`FIGS. 7A and 7B are plan views showing various examples of an insole shown in FIG. 6,
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`respectively.
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`

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`FIG. 8 is a cross-sectional view taken along line II-III of FIG. 1, illustrating another
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`example of shoes according to another embodimentof the present disclosure.
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`FIG. 9 is a cross-sectional view taken along line II-III of FIG. 1, illustrating another
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`example of shoes according to another embodimentof the present disclosure.
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`FIGS. 10A and 10B are plan views illustrating various examples of a bottom portion of
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`the shoesillustrated in FIG. 9, respectively.
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`FIG. 11 is a cross-sectional view taken along line IIJ-[II of FIG. 1, illustrating another
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`example of shoes according to another embodimentof the present disclosure.
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`FIG. 12 is a cross-sectional view taken along line III-III of FIG. 1, illustrating shoes
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`according to another embodimentofthe present disclosure.
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`FIG. 13 is a plan view of an example of the shoes shownin FIG. 12.
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`FIG. 14 is a plan view of another example of the shoes shown in FIG. 12.
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`FIG. 15 is a cross-sectional view taken along line III-III of FIG. 1, illustrating shoes
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`according to another embodimentofthe present disclosure.
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`FIG. 16 is a cross-sectional view taken along line II-III of FIG. 1, illustrating shoes
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`according to another embodimentofthe present disclosure.
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`FIG. 17 is a perspective view of shoes according to an embodiment of the present
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`disclosure.
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`FIG. 18 is a side view of the shoes shownin FIG. 17.
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`20
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`FIG. 19 is a rear view of the shoes shownin FIG. 17.
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`FIG. 20 is a plan view of the shoes shown in FIG. 1, in which an extending portion is
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`enlarged in a circle.
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`FIG. 21 is a cross-sectional view taken along line A-A’ of FIG. 18.
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`FIG, 22 is a cross-sectional view taken along line B-B’ of FIG. 18.
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`FIG, 23 is a cross-sectional view taken along line C-C’ of FIG. 18.
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`

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`FIG. 24 is a cross-sectional view taken along the line D-D’ of FIG. 20.
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`FIG. 25 is a schematic exploded perspective view of shoes according to another
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`embodimentof the present disclosure.
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`[Best Modes]
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`Hereinafter, embodiments of the present disclosure will be described in detail with
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`reference to the accompanying drawings.
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`In describing the present disclosure,
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`if it
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`is
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`determined that a detailed description of known functions and components associated with the
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`present disclosure unnecessarily obscure the gist of the present disclosure,
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`the detailed
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`description thereof will be omitted. The terms used henceforth are used to appropriately
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`express the embodiments of the present disclosure and may bealtered according to a person of a
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`related field or conventional practice. Therefore, the terms should be defined on the basis of the
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`entire content of this specification.
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`Technical terms used in the present specification are used only in order to describe
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`specific exemplary embodiments rather than limiting the present disclosure. The terms of a
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`singular form may include plural forms unless referred to the contrary.
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`It will be further
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`understood that
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`the terms “comprise” and/or “comprising,” when used herein, specify the
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`presence of stated features, integers, steps, operations, elements, and/or components, but do not
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`preclude the presence or addition of one or more other features, regions,
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`integers, steps,
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`operations, elements, components, and/or groups thereof.
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`20
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`Hereinafter, shoes according to an embodiment of the present disclosure will be
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`described in detail with reference to the accompanying drawings.
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`First, shoes according to an embodiment of the present disclosure will be described with
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`reference to FIGS. 1 to 5.
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`Shoes 1 according to an embodiment of the present disclosure includes a body 10, an air
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`25
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`passage portion 20 protruding from a front of the body 10 in an outward direction, and a plurality
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`10
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`

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`of foot support portions 30 attached to the air passage portion 20.
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`The body 10 is a portion, into which a foot of a user 200 is inserted, worn on the foot of
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`the user 200 and includes a bottom portion 110, an instep portion 120 connected to the bottom
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`portion 110, and an ankle portion 130 connected to the instep portion 120.
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`The bottom portion 110 is a portion in which a sole of the user 200 is located, and
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`contacts the sole of the user when the user wears the shoes.
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`The instep portion 120 is a portion covering an instep of the user 200, and the foot of the
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`user 200 is inserted into a space surroundedby the bottom portion 110 and the instep portion 120
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`to wear shoes.
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`The ankle portion 130 is a portion that is seamlessly connected to an end of the instep
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`portion 120 and protrudes toward a body of the user 200. According to a protruding length of
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`the ankle portion 130, a portion of the user’s leg, as well as the user’s ankle, may be worn in the
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`shoes 1.
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`Here, the ankle portion 130 may be omitted or the protruding length of the ankle portion
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`130 may be adjusted, and various types of shoes may be manufactured by omitting the ankle
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`portion 130 or adjusting the protruding length.
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`The air passage portion 20 is
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`a convex portion protruding outwardly with a
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`predetermined width W20 from a middle portion of the front of the instep portion 120 and the
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`ankle portion 130.
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`20
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`The air passage portion 20 may be located in a straight line along the ankle portion 130
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`from the instep portion 120 of the body 10.
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`Here, the air passage portion 20 extends seamlessly from an upper portion of a front nose
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`portion 121 of the shoes 1 located in a connection portion of the bottom portion 110 and the
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`ankle portion 120 in which toes are mainly positioned, i.e., from a portion (i.e., an instep start
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`25
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`portion) 122 of the instep portion 120 corresponding to a portion in which the instep starts to an
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`11
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`

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`end portion of the ankle portion 130 as a straight line.
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`In this example, the front nose portion
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`121 formsa portion of the instep portion 120.
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`Here, the width W20of the air passage portion 20 may be equal regardless of height and
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`maybe a size with which heat or sweat occurring in the shoes | is efficiently discharged without
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`bringing about discomfort of the user who wears the shoes 1 and spoiling the beauty. For
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`example, the width W20 ofthe air passage portion 20 may ranged from 0.5 cm to 2 cm.
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`The protrusion height H20 of the air passage portion 20 may be different from each other
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`in a width direction at the same level. That is, since planar shapes of an inner surface and an
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`outer surface of the air passage portion 20 are formed as curved surfaces rather than an angular
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`shape as shownin FIG. 2, a protrusion height H20 at a middle portion of the air passage portion
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`20 may begreater than a protrusion height H20 at an edge portion thereof at the samelevel.
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`In this example, the protrusion height H20 may be a shortest distance from a virtual line
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`L1 extending from the instep start portion 122 toward the ankle portion 130 and extending to be
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`spaced apart from an inner surface of the adjacent air passage portion 20 by the same distance to
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`the inner surface of the air passage portion 20, and the width W20 may beashortest distance
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`between both sides of the inner surface of the air passage portion 20 facing each other on the
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`mutually opposite sides in the width direction.
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`Therefore, as
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`shown in FIG. 3,
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`the air passage portion 20 protrudes with the
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`predetermined width W20 from the middle portion of the front of the body 10 in an outward
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`20
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`direction and protrudes to an end portion of the body 10 in an extending direction of the body 10
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`which extends toward the bodyofthe user 20.
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`The plurality of foot support portions 30 are portions for safely and conveniently
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`supporting the foot and leg portions of the user 20 inserted in the shoes 1. The plurality of foot
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`support portions 30 are located between both sides of the inner surface of the air passage portion
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`25
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`20 and arranged to be spaced apart from each other in the extending direction of the air passage
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`12
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`

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`portion 20 (i.e., in the direction toward the ankle portion 130 from the instep portion 120, which
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`is the opposite direction of the width direction).
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`The foot support portion 30 may have the same shape suchasa bar shapeor a band shape
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`and have the samesize, but at least one of the shape and size of the foot support portion 30 may
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`be different depending on a position thereof.
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`In a case in whichat least one of the shape and
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`size is different depending on a position, the shape and the size of the foot support portion 30
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`may be determined according to a body shape ofthe user in contact with the foot support portion
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`30.
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`Therefore, one side of the foot support portion 30 is connected to one side of the inner
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`surface of the air passage portion 20, and the other side of the foot support portion 30 is
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`connected to the other side of the inner surface of the air passage portion 20, and thus, each foot
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`support portion 30 is located side by side in the width direction of the air passage portion 20.
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`Here, since two adjacent foot support portions 30 are spaced apart at the same interval,
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`the plurality of foot support portions 30 may be spaced apart at regular intervals in the extending
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`direction of the air passage portion 20.
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`However,
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`in an alternative example, a distance between two adjacent foot support
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`portions 30 may be different. Here, as shown in FIG. 1, instead of being uniformly located
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`along the extending direction of the air passage portion 20, the plurality of foot support portions
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`30 may be located only at predetermined specific positions.
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`20
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`For example, the plurality of foot support portions 30 may be located to be spaced apart
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`from each other at a predetermined interval
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`in a portion of the air passage portion 20
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`corresponding to the user’s leg portion of the air passage portion 20 corresponding to an ankle
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`portion of the user, and may not be located in a portion of the air passage portion 20
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`corresponding to the ankle portion in which bending of foot frequently occurs. Here, a distance
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`25
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`at the portion in which the foot support portion 30 is located may be the same.
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`13
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`

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`In this manner, when the plurality of foot support portions 30 are located only at
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`predetermined specific positions of the air passage portion 20,
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`the plurality of foot support
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`portions 30 maynot be located in a portion in which the bending motion of the shoes 1 is mainly
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`made in the air passage portion 20, that is, a portion corresponding to the ankle portion as
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`described above to minimize discomfort of the foot located in the shoes 1.
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`In this manner, when a plurality of foot support portions 30 are located in a specific
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`position, activity of the shoes 1 may be improved and damageto the skin due to contact between
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`the foot support portions 30 and the skin when the bending motion of the shoes 1 is made with
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`respect to the ankle portion may be prevented.
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`In this manner, as the plurality of foot support portions 30 are located in the extending
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`direction of the air passage portion 20, an open portion of the air passage portion 20 in which
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`each foot support portion 30 is located may be blocked by the corresponding foot support portion
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`30 so as to be separated from a space surrounded by the instep portion 120 and the ankle portion
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`130.
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`Accordingly, a space in the shoes 1 in which lowerandside portions are surrounded by
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`the bottom portion 110, the instep portion 120, the ankle portion 130 and the air passage portion
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`20 of the body 10 and an upper portion is open may be divided into a space $10 surrounded by
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`the bottom portion 110, the instep portion 120, the ankle portion 130, and the plurality of foot
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`support portions 30 and a space S20 surroundedby the air passage portion 20 andthe plurality of
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`20
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`foot support portions 30.
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`Here, the space $10 is a foot insertion space into which the user’s foot is inserted, and the
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`space $20 is an air passage through whichair flows between the inside and the outside of the
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`shoes 1, and thus, the air passage 20 is formed between the air passage portion 20 and the foot
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`support portion 30.
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`25
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`Here, the air passage 20 is separated from the foot insertion space $10 of the body 10 in
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`14
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`

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`whichthe user’s foot is inserted in the portion in which the foot support portion 30 is located, but
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`in a portion in which the foot support portion 30 is not located, the air passage 20 communicates
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`with the foot insertion space $10, and thus, the foot insertion space $10 communicates with the
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`outside through the air passage 20.
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`Therefore, due to the formation of the air passage 20, air flows between the inside and the
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`outside of the shoes 1 so that heat or sweat that occurs in the shoes 1 may be quickly discharged
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`to the outside through the air passage 20,
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`thus making the environment inside the shoes 1
`
`comfortable.
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`In addition, as the plurality of foot support portions 30 are located to traverse the air
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`passage portion 20 protruding outward from the body 10 of the shoes 1 in the width direction, the
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`foot insertion space S10 in which the foot of the user 200 is substantially inserted and located is a
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`space surrounded by a main body 10 and the plurality of foot support portions 30 as described
`
`above, as shownin FIG. 5.
`
`Therefore, when the foot is inserted into the foot insertion space S10, the instep and shin
`
`of the user 200 located in the front portion of the shoes 1 are limited by the plurality of foot
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`support portions 30, and thus, a problem that the foot insertion space $10 increases due to the air
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`passage portion 20 protruding to the outer portion of the body 10 is prevented.
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`Therefore, despite the formation of the air passage portion 20, the foot insertion space
`
`S10 is not increased by the air passage portion 20 and the foot insertion space S10 is determined
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`20
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`to be suitable to the size of the foot and leg of the user 200, thereby preventing a problem that
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`wearing sensation of the shoes 1 is degraded dueto the air passage portion 20.
`
`In the shoes 1 of this example, the body 10, the air passage portion 20, and the foot
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`support portion 30 may all be formed of the same material, and may be formed of a material such
`
`as natural rubber, synthetic rubber, or synthetic resin.
`
`25
`
`For example, the body 10, the air passage portion 20, and the foot support portion 30 may
`
`15
`
`

`

`be formed of polyethylene (PE) which is non-toxic, has excellent chemical resistance, and has
`
`excellent insulation, polyvinyl chloride (PVC) which has excellent light resistance, chemical
`
`resistance, and electrical insulation, a thermoplastic rubber which is non-adhesive and non-oil
`
`and has high insulation, thermoplastic rubber (TPR) which has cold resistance and is resistant to
`
`acids or alkalis, styrene butadiene styrene (SBS), styrene ethylene butylene styrene (SEBS), or
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`ethylene propylene diene M-class (EPDM) which hasexcellent heat resistance and flexibility at
`
`low temperatures.
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`In addition, the body 10, the air passage portion 20, and the foot support portion 30 may
`
`be
`
`formed of
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`styrene
`
`ethylene propylene
`
`styrene
`
`(SEPS), SEEBS,
`
` styrene-ethylene-
`
`ethylene/propylene-styrene (SEEPS), ethylene vinyl acetate (EVA), thermoplastic polyurethane
`
`(TPU), polyurethane (PU), polystyrene (PS), polypropylene (PP), TPO,
`
`rubber such as
`
`thermoplastic cured rubber (TPV) or a foam resin.
`
`In an alternative example, the bottom portion 120 of the body 10 may be formed of a
`
`material different from that of the other portions 120 and 130 of the body 10, and here, the
`
`bottom portion 120, the instep portion 120, and the ankle portion 130 may be formed of a
`
`material such as natural rubber, synthetic rubber, or synthetic resin.
`
`In another example, the body 10 and the air passage portion 20 are formed of the same
`
`material, but a portion of the foot support portion 30 may be formed of a material different from
`
`the body 10 and the air passage portion 20. Here, the body 10 and the air passage portion 20
`
`20
`
`are formed of a material such as natural rubber, synthetic rubber, or synthetic resin, whereas a
`
`portion of the foot support portion 30 adjacent to the user’s body and in contact with the skin is
`
`provided with fiber or the like added thereto and other portions of the foot support portion 30
`
`may be formed of the same material as the body 10.
`
`In this example, a plurality of foot support portions 30 are provided, only a single foot
`
`25
`
`support portion 30 may also be provided.
`
`16
`
`

`

`Next, with reference to FIGS. 6 to 16, shoes la-1f according to other embodiments of the
`
`present disclosure will be described.
`
`In this embodiment, compared to the shoes 1 shown in FIGS. 1 to 5, components having
`
`the same structure and performing the same function will be given the same reference numerals
`
`as those of the shoes 1 illustrated in FIGS.
`
`1 to 5 and a detailed description thereof will be
`
`omitted.
`
`First, shoes la of an example according to another embodiment of the present disclosure
`
`will be described with reference to FIGS. 6 to 7B.
`
`Compared with the shoes 1 shown in FIGS.
`
`1 to 5, the shoes la according to another
`
`embodimentof the present disclosure further includes an insole 50 located at the bottom portion
`
`110 of the body 10.
`
`Therefore, as shown in FIG. 6, the shoes la in this example includes a body 10 including
`
`a bottom portion 110, an instep portion 120, and an ankle portion 130, an air passage portion 20
`
`located to protrude outward from a middle portion of a front of the body 10, a pluralit