An article of footwear may include an upper forming a void within the footwear, a sole structure secured to the upper, and a chamber that encloses a pressurized fluid. The sole structure includes a depression. The chamber is located within the void of the upper and located on the depression of the sole structure. The chamber may include a plurality of fluid-filled subchambers, a manifold, and a connection fluidically-connected at least one of the subchambers to the manifold. The subchambers may enclose the pressurized fluid at different pressures. The subchambers may be separated from one another by a bonded area in the direction extending between the heel and toe of the chamber.

An article of footwear includes a sole assembly defining a base support plane. The sole assembly also includes a cushioning assembly with a first end and a second end. The cushioning assembly includes a first cushioning member and a second cushioning member. The first cushioning member includes a first overlapping surface, and the second cushioning member includes a second overlapping surface. The first and second overlapping surfaces overlap each other over the base support plane and each slope at a positive acute angle relative to the base support plane. The first cushioning member is thicker than the second cushioning member adjacent the first end of the cushioning assembly, and the second cushioning member is thicker than the first cushioning member adjacent the second end of the cushioning assembly. The first cushioning member has a resistance to resilient deformation less than that of the second cushioning member.

An article of footwear includes an upper, a midsole, and a support assembly positioned beneath the midsole. The support assembly includes a plurality of primary support members having a substantially Z-shaped cross-section extending transversely across the support assembly. The support assembly may include a plurality of secondary support members having an inverted V-shaped cross-section, extending longitudinally along the support assembly, and intersecting with the primary support members. An outsole is positioned beneath the support assembly.

A sole structure for a shoe that can reduce the burden of MP joints and a knee joint of a shoe wearer's foot during running and that can improve cushioning properties. The sole structure of the shoe includes an upper plate of a hard elastic member disposed at a forefoot region of the shoe, a lower plate of a hard elastic member disposed under and spaced away from the upper plate, and a midsole of a soft elastic member interposed between the upper plate and the lower plate. The midsole has a longitudinally extending hollow portion that is upwardly concavely curved at a lateral mid-portion of the midsole. The lower plate has a concave portion corresponding to the hollow portion of the midsole.

A dual-density insole (or sock liner) for a shoe is disclosed. The insole includes a carrier with two cavities. Two inserts with a density or hardness level that is different from that of the carrier are positioned in the cavities for increased performance. The disclosed insole further exhibits a molded geometry marked with shaped protrusions.

A simplified sole structure for a baseball spiked shoe that can improve cushioning properties of a heel region of the sole structure and that can enhance comfortableness in wearing the shoe. The baseball spiked shoe includes a first midsole of a soft elastic member disposed at a heel central portion of the shoe, a second midsole of a soft elastic member that is disposed around and away from the first midsole via a circumferential groove and that is integrated with or unitary as one unit with the first midsole, and an outsole plate 4 of a hard elastic member that is disposed on lower surfaces of the first and second midsoles, that has a plurality of spikes fitted thereon, and that has a hardness greater than a hardness of each of the first and second midsoles.

An orthotic device for insertion into footwear for correcting over pronation or supination of a foot is disclosed herein. The orthotic device may include an insole comprising an upper surface and a lower surface. The upper surface of the insole may receive and support at least a portion of the foot. The orthotic device also may include a removable angle insert attachable to the lower surface of the insole. The removable angle insert may increase an angle about a side of the insole to correct over pronation or supination of the foot.

A removable and adjustable insert for footwear has slots placed in the insole and/or midsole of the shoe to allow access to the arch and/or metatarsal and/or heel regions of the insole and/or midsole. In an embodiment, an insert placed into the arch insert slot that establishes how much the arch protrudes above the remainder of the top surface of the insole. One or more inserts are provided having different thicknesses so that the height of the arch can be varied by the user or at the direction of a third party, such as a doctor or a trainer.

A women's high heel shoe and method of manufacturing, the shoe having improved safety and usability features including an improved heal providing improved safety with a widened heel tip with improved traction and reduced surface penetration susceptibility while not detracting from the stylish narrowed high heel design of the shoe.

A shoe or other footwear has a non-removable multi-layer insole. A middle layer of the insole has apertures that define several discrete storage chambers within the insole. Each storage chamber stores a mixture of particulate or granular materials, such as sand, powdered titanium, powdered aluminum, powdered talcum, powdered zinc. The insole or footwear further includes integrated components such as: electromyogram (EMG) sensors, temperature sensors, pressure sensors, humidity sensors, sweat sensors. The insole or footwear further includes integrated stimulating units, such as: Transcutaneous Electrical Nerve Stimulation (TENS) units, electrodes, infrared radiation units. Data is sensed by the sensors integrated in the insole or footwear, in response to a human foot stepping on the discrete storage chambers that store the particulate or granular materials, and optionally in response to stimulation operations. Data is processed to detect or estimate a medical condition, and to selectively modify operational properties of the stimulation units.