Asics Corporation

Rena Furuishi

Seiji Yano

Tsuyoshi Nishiwaki

Seigo Nakaya

Kenta Moriyasu

Mai Nonogawa

Toshihiko Nakamura

Kenji Sakamoto

Kouki Matsuo

A shoe sole including an outsoleand a midsole, wherein: the midsoleincludes a lower midsoleof a lower layer formed by a foamed body of a resin, and an upper midsoleof an upper layer formed by a foamed body of a resin and arranged on the lower midsole; a lateral roll-up portionfor supporting a lateral side of a foot from a side of the foot is formed integrally with the lower midsole; a hardness of a lateral portionof the lower midsoleincluding the lateral roll-up portionis a first hardness; a hardness of a medial portionof the lower midsoleis a second hardness lower than the first hardness; a hardness of a lateral portionof the upper midsoleis a third hardness lower than the first hardness; and a part or a whole of the high-hardness lateral roll-up portionis protruding in an upward direction past the upper midsoleon a lateral side of the upper midsoleso that the lateral side of the foot is supported by the lateral roll-up portionfrom the side of the foot without being supported by the upper midsolefrom the side of the foot.

Shoe sole having outsole and midsole

A low rigidity region being more stretchable and bendable than a high rigidity region, includes a main portion, and a medial first flexible portion and a lateral first flexible portion extending from the main portion in the medial and lateral directions. The main portion covers a portion of the area from the shaft of the first proximal phalanx to the shaft of the second proximal phalanx, the medial first flexible portion covers a portion of the area from the shaft of the first proximal phalanx to the head of the first metatarsal bone, and the lateral first flexible portion extends to the lateral side of the foot from the main portion. When pushing off the foot onto the medial/lateral side in a diagonally forward direction, the upper bends along the diagonal bend lines. Therefore, the diagonal portions and the main portion serve as the bend lines.

Structure for front foot portion of upper of shoe

Shoe upper

Growing community of inventors

Kobe, Japan

Rena Furuishi