A shoe may comprise an upper and a comfort sole attached to an outsole, the comfort sole having a radius of curvature at any point of a line from a heel to a toe and interfacing with outsole, wherein the lowest point of comfort sole and outsole, called the center of mass or balance point of the sole or natural balance point of the shoe, when placed on a substantially horizontal reference plane defines a transition zone of the roll of the foot having the highest radius of the comfort sole and the outsole, and in that the center of mass is behind point (B) of the metatarsals; and a rigid shell interposed between the upper and the comfort sole.

A plate for an article of footwear having a sole structure includes an anterior-most point disposed in a forefoot region of the sole structure, a posterior-most point disposed closer to a heel region of the sole structure than the anterior-most point, and a concave portion extending between the anterior-most point and the posterior-most point. The concave portion includes a constant radius of curvature from the anterior-most point to a metarsophalangeal (MTP) point of the sole structure. The MTP point opposes the MTP joint of a foot during use.

The present invention relates to shoes which are an excellent fit and have improved comfortability and safety in use particularly in a wet place, and provides non-slip shoes with a webfoot in which a sole part and a webfoot part are integrally formed, thereby allowing walking and swimming at the same time.

A midsole for sports shoes having a front isolation cavity, a side cavity, and a rear isolation cavity partially separating the recessed arch portion of the midsole from the rest of the midsole.

Described herein are systems and devices for providing an orthopedic walking brace having a housing and a sole with a curved distal surface. The housing is configured to encompass and immobilize a patient's ankle against flexion. The distal surface of the sole has a posterior region, a mid region, and an anterior region. The posterior region is configured to lie under a heel portion of the patient's foot and has a first anterior-posterior (AP) curvature that increases from a posterior side of the posterior region toward a middle portion of the posterior region and decreases from the middle portion of the posterior region toward the mid region. The mid region is configured to lie under a center portion of the patient's foot. The anterior region is configured to lie under an anterior metatarsal and toe portion of the patient's foot and has a second AP curvature.

Systems and methods are described for a shoe sole for relieving pressure from a wearer's metatarsal heads. In one aspect, a shoe sole comprises a shoe outer sole comprising a shaft region, a ball region, and a toe region. The shaft region underlies metatarsal shafts of the wearer and comprises a first lower surface, the ball region underlies metatarsal heads of the wearer and comprises a second lower surface, and the toe region underlies phalanges of the wearer and comprises a third lower surface. The second lower surface is raised relative to the first lower surface and the third lower surface.

A sole structure for an article of footwear is provided and includes a plate having a concave ground-engaging surface extending between a medial side of the plate and a lateral side of the plate and movable between a relaxed state and a flexed state. The concave surface has an increased radius when moved from the relaxed state to the flexed state. A first ground-engaging member extends from the plate proximate to the medial side of the plate and a second ground-engaging member extends from the plate proximate to the lateral side of the plate. The second ground-engaging member is spaced apart from the first ground-engaging member by a first distance when the plate is in the relaxed state and is spaced apart from the first ground engaging member by a second distance greater than the first distance when the plate is in the flexed state.

A shoe sole includes a rear bottom surface part and a toe portion. The rear bottom surface part is formed to extend from a rearfoot portion to a midfoot portion and, when the shoe sole is placed on a flat virtual surface, the rear bottom surface part is in contact with the virtual surface. A height of the toe portion from the virtual surface is set to 170% or greater and 250% or less with respect to a thickness dimension in the rear bottom surface part.

An orthopedic insole and a method of manufacturing a convex cushion structure for walking unsteadiness, the convex cushion structure being provided on an upper surface of an insole body. The method includes steps of data collection: measuring plantar static pressure data and plantar dynamic pressure data; data analysis: analyzing the plantar static pressure data and the plantar dynamic pressure data; preparing an insole body; performing insole modeling based on the plantar static pressure data; and importing the plantar dynamic pressure data to manufacture the insole body; partitioning the insole body; preparing the convex cushion structure: determining a shape of the convex cushion structure by using a test result of the dynamic pressure distributions; determining a specific location of the convex cushion structure by using a test result of the gait lines and the gait cycle; and printing the convex cushion structure on the upper surface of the insole body.

An article of footwear includes an upper and a sole coupled to the upper. The sole includes an upper sole, a fluid filled bladder coupled to the upper sole, and a plurality of recesses disposed between the upper sole and the bladder. The bladder includes a plurality of chambers extending below the upper sole. The plurality of chambers hold a fluid. Ambient air is disposed within the plurality of recesses between the upper sole and the bladder.