Provided is a shoe sole member including: a first foam member containing a first resin; and a second foam member containing a second resin, wherein the first foam member and the second foam member are fused, and the second resin has a melting point higher than that of the first resin by 20 C. or more.

A sole structure for an article of footwear comprises a midsole including a first cushioning layer, a second cushioning layer, and a third cushioning layer. The first cushioning layer has a central portion, and a peripheral portion surrounding the central portion. The first cushioning layer, the second cushioning layer, and the third cushioning layer are stacked with the second cushioning layer directly overlying the peripheral portion of the first cushioning layer, and the third cushioning layer overlying the second cushioning layer and directly overlying the central portion of the first cushioning layer. The first cushioning layer has a domed lower surface extending away from the second cushioning layer and the third cushioning layer and substantially centered under the central portion.

An athlete in any athletic event generates forces on and subjects their lower extremities to forces which are unique to that athlete's mass, speed and strength. These forces are also affected by the composition of the playing field surface, shoe design and construction and other factors. It is possible to determine, according to these factors, the level of force above which injury to the athlete's lower extremities is inevitablethe pre-injury force threshold. This pre-injury force threshold is then used to design and build an athletic shoe which will provide a force-mitigating deformation induced by forces equal to the particular athlete's pre-injury force threshold. This deformation of the athletic shoe prevents injury to the athlete's lower extremities. This deformation may be induced by designing the sole of an athletic shoe with specifically engineered incised cut-outs or channels in the athletic shoe sole.

An insole, outsole, shoe sole or a shoe formed with the disclosed layered sole includes a small layered sheet including a specific layered sheet. The shoe sole may be formed to include a small layered sheet provided at any one or two or more places of a front foot portion, a middle foot portion or a rear foot portion of the shoe sole, or is provided across two or more positions of the front foot portion, the middle foot portion or the rear foot portion of the shoe sole, the small layered sheet formed of a layered sheet of a plurality of cloths wherein; the cloths formed of a strand of an oriented thermoplastic resin; and the plurality of cloths are integrated by heating and compressing.

Improved soles and insoles for shoes, in particular sports shoes, are described. In an aspect, a sole for a shoe, in particular a sports shoe, with at least a first and a second surface region is provided. The first surface region comprises expanded thermoplastic polyurethane (TPU). The second surface region is free from expanded TPU.

A sole for a shoe, such as a sports shoe, includes a plurality of essentially jointly extruded plastic strands. A method for the manufacture of a sole for a shoe includes essentially jointly extruding a plurality of plastic strands and connecting the plurality of extruded plastic strands.

In the sole, inequalities, m2m1, m1f and m1h are satisfied, wherein the rearmost end of the foot-sole-contact-side surface is set to the origin, the path measured along the surface from the origin to the tip of the toe is set to L, the sole thicknesses at the positions of Sh(0.16L), Sm2 {(0.3-0.5)L}, Sm1{(0.40.6)L} and Sf(0.7L) are set to h, m2, m1 and f, respectively. An inequality, 2>1 is satisfied, wherein the angle between the line connecting the positions Sm1, Sh and the horizontal plane is set to 1, and the angle between the line connecting the positions Sm1, Sh and the horizontal plane is set to 2, in which the position where the vertical lines drawn from the positions Sm1, Sh cross the ground-contact surface are set to Sm1, Sh, respectively. The ground-contact surface has a downwardly convexly curved shape at the forefoot region.

A sole structure for a shoe that can secure cushioning properties and obtain a ground surface information is disclosed. The sole structure includes a first midsole having a plurality of first protrusions on a foot-sole-contact side, an outsole having a plurality of second protrusions on a ground surface side, and a second midsole disposed at a part of a region between the first midsole and the outsole and having a lower compressive rigidity than the first midsole. At least a part of the plurality of first protrusions of the first midsole is located at a position corresponding vertically to at least a part of the plurality of second protrusions of the outsole.

The midsole structure for an athletic shoe includes a midsole body made of foamed resin, and a sheet composite extending at least from the ball of the foot portion to the toe portion in the midsole body and comprising a plurality of foamed rubber sheets that are overlapped and shifted in the longitudinal direction. The sheet composite comprises a single sheet at the toe portion and a plurality of sheets at the ball of the foot portion.

The present invention provides a sole for a footwear article. The sole is formed from an elastomeric compound comprising at least one elastomer, and at least one graphene based material, in an amount ranging from 0.1 wt % to 5 wt % relative to the weight of said at least one elastomer, essentially uniformly distributed in said at least one elastomer.