Path length L is a distance from the origin to the tip toe position along the sole top surface, intersection C is a point between the sole bottom surface and a line perpendicular to the reference line S through the position of 0.45 L, and intersection D is a point between the sole bottom surface and a line perpendicular to the reference line S through the position of 0.60 L. In a sole stable posture in which the sole is in contact with the ground at points C and D, the sole bottom surface is separated from the ground at the heel and tip toe portions. Inequality, 5 degrees is satisfied in the sole stable posture, wherein is an angle between the ground and a line connecting the heel central position of 0.15 L and the metatarsophalangeal joint position of 0.68 L.

An article of footwear includes an upper and a sole structure. The sole structure includes a plate that has a heel portion, a midfoot portion, a forefoot portion, and an extension portion. The extension portion extends forward of the forefoot portion and forward of a foremost extent of upper. The plate includes a first plate layer establishing an outer surface of the plate and extending in each of the heel portion, the midfoot portion, the forefoot portion, and the extension portion, and a second plate layer interfacing with the first plate layer and extending in the forefoot portion and the extension portion. A bending stiffness of the second plate layer is greater than a bending stiffness of the first plate layer.

The invention pertains to a foot arch correction training shoe with a uniquely designed sole for enhanced arch training during walking. The sole comprises a front part, a middle part, and a rear part. The front part includes a transitional zoom and a toe support zoom, facilitating a point of force during walking for effective arch muscle training. The toe support zoom lies on a second horizontal surface, lower than the first horizontal surface on which the middle and rear parts of the sole rest. The transitional zoom features toe grip patterns for improved safety, and the shoe upper straddles the sole's sides for a secure fit. The shoe upper also includes decorative bumps for aesthetic appeal. The angle between the transitional zoom's inclined surface and the second horizontal surface ranges between 120 and 165, ensuring optimal foot slope for both comfort and arch correction effectiveness.

An apparatus includes a heel section. a mid-foot section. and a toe section. The heel section. the mid-foot section. and the toe section collectively have a geometric shape having a first slope of a polarity along an inner edge of the apparatus from the toe section to the heel section and a second slope of the polarity along the inner edge of the apparatus to an outer edge of the apparatus at the toe section.

A segmented sole for an article of footwear comprises a forefoot region, a heel region, and a segmentation zone disposed between the forefoot and heel region. The segmentation zone includes a plurality of segments separated from each other and from the forefoot and heel by a plurality of sipes, cuts, or gaps. The segmented sole produces bending along a segmentation axis disposed along an arch of a wearer of an article of footwear including the sole, allowing for arch support and natural foot movement.

A segmented sole for an article of footwear comprises a forefoot region, a heel region, and a segmentation zone disposed between the forefoot and heel region. The segmentation zone includes a plurality of segments separated from each other and from the forefoot and heel by a plurality of sipes, cuts, or gaps. The segmented sole produces bending along a segmentation axis disposed along an arch of a wearer of an article of footwear including the sole, allowing for arch support and natural foot movement.

A shoe configured for athletic activity features a sole including a heel portion, an interior floor portion, a toe portion, a rear portion, a top, and left and right sides, all assembled to define a closed-end cavity sized for ingress and egress of a human foot, and further including means for releasably clamping the shoe against the foot, wherein a top surface of said interior floor portion at the rear of the shoe has an elevation that is 1.5 to 3.375 inches greater than a top surface of said interior floor portion at the front (toe region) of the shoe. The heel portion of said sole may be wider laterally than other portions of the sole.

A sole structure for an article of footwear is provided. The sole structure includes an outsole having a ground-engaging surface and an upper surface formed on an opposite side of the outsole than the ground-engaging surface. A first cushion is disposed proximate to a medial side of the sole structure and includes a first fluid-filled chamber attached to the upper surface of the outsole and a second fluid-filled chamber attached to the first fluid-filled chamber and disposed between the first fluid-filled chamber and the upper. A second cushion is disposed proximate to a lateral side of the sole structure and includes a third fluid-filled chamber attached to the upper surface of the outsole and a fourth fluid-filled chamber attached to the third fluid-filled chamber and disposed between the third fluid-filled chamber and the upper. The second cushion is fluidly isolated from the first cushion.

An orthotic support assembly is disclosed herein that includes an internal device configured to be inserted within a person's footwear. The internal device is formed of a cushioning material and extends from an internal surface at a bottom portion of the footwear to an internal surface of a top portion of the footwear.

A boot for a motorcyclist, including an upper portion integrally connected to an outsole, the upper portion having a leg portion and a foot portion integrally connected to each other by means of an ankle portion, the leg portion including a shin portion and a calf portion, and the foot portion having a heel portion and a vamp portion, and a curved coverture configured to cover an outer side of the leg portion of the boot, the curved coverture being shaped according to an airfoil and including a leading edge arranged in correspondence of the shin portion and a trailing edge arranged in correspondence of the calf portion.