Importance

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Abstract

An article of footwear such as a shoe includes a deformable inner sole, an outer sole, as well as a resilient pumping member and resilient supporting member disposed in a hollow portion defined between the inner and outer soles. The pumping member, comprising a hollow body, is penetrated by a plurality of air-intake holes for communicating the pump interior with the hollow portion, and is provided with a tube communicating with the rear of the shoe, and the inner sole has ventilating holes for communicating the hollow portion with the interior of the shoe. The application and removal of the wearer's weight with each step repeatedly deforms the inner sole which in turn causes an exchange of air between the hollow portion and the shoe interior through the ventilating holes, as well as the compression and relaxation of the pump member to expel air, drawn into the pump member from the hollow portion through the air-intake holes, toward the rear of the shoe. Thus the shoe is ventilated by air layers located above and below the inner sole.

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First Claim