A plurality of orthotic systems are provided. One bi-layer system is constructed from a single sheet of fabric that is molded into two layers. One tri-layer system includes a base layer; a mid-layer; and an upper layer. The upper layer is joined to the mid-layer and the mid-layer is joined to the base layer. The coupling of the base layer, the mid-layer and the upper layer create a rear spring section, a mid-spring section and a front spring section in which the upper layer is suspended over the mid-layer and the heel portion is suspended on the proximal heel end of the base layer.

Golf shoes, and specifically, to golf shoes enabling increased driving distance and precise directivity, whereby, in order to enable weight distribution, seating grooves, in which a forefoot portion (ball) and a rearfoot portion (heel) are respectively seated, are respectively formed on the front and rear of the upper surface of an insole, and anti-slip protrusions are respectively formed on one side surface of the front of the upper surface of the insole, and the other side surface of the rear of the upper surface of the insole, so as to prevent the foot from slipping and thus rotating, and thus weight distribution is easily achieved at taking stance and addressing a ball, even by only being grounded on the ground, and the foot is prevented from slipping in the golf shoes at finish.

A shoe slide that includes a footbed having a forefoot area with a top edge, a hindfoot portion with a bottom edge, and a footbed surface. A foam footbed liner is disposed atop the footbed surface, the foam footbed liner having an upper surface. A metatarsal pad in the forefoot area of the footbed protrudes above the surface of the footbed liner and is dimensioned such that when the shoe slide is worn the metatarsal pad engages and applies pressure to the wearer's plantar fascial near the proximal phalanges of the toes at the metatarsophalangeal joints. The shoe slide also includes a raised rubber protrusion in the hindfoot area of the footbed positioned and dimensioned such that when the shoe slide is worn the raised rubber protrusion engages and applies pressure to the wearer's plantar fascia near the calcaneal tubercle.

An adjustable multiple bladder system for an article of footwear is disclosed. The bladder system includes an outer bladder that may be inflated using an external pump. A valve member is disposed within the outer bladder and divides the outer bladder into two distinct inflation chambers. The inflation chambers may be inflated separately.

An adjustable multiple bladder system for an article of footwear is disclosed. The bladder system includes an outer bladder that may be inflated using an external pump. A valve member is disposed within the outer bladder and divides the outer bladder into two distinct inflation chambers. The inflation chambers may be inflated separately.

A sole for a shoe is provided comprising at least two reinforcing members extending at least in a front half of the sole, and at least two blade members extending at least in the front half of the sole. The reinforcing members define a first layer within the sole, and the blade members define a second layer in the sole, wherein the first layer and the second layer are at least partially displaced from one another in a vertical direction.

A breathable ergonomic insole for use with a high-heeled shoe includes: an upper layer; an insole body; a plurality of raised support structures, including front, central, and rear support structures; a plurality of perforation assemblies, each comprising a plurality of perforation apertures; front and rear grip patterns; a central grip pattern comprising a plurality of hexagonal indentations, for which a subset is penetrated by a corresponding perforation assembly.

Devices with internal flexibility sipes, such as slits, provide improved flexibility, improved cushioning to absorb shock and/or shear forces, and improved stability of support. Siped devices can be used in any existing product that provides or utilizes cushioning and stability. These products include human and other footwear, both soles and uppers, as well as orthotics; athletic, occupational and medical equipment and apparel; padding or cushioning, such as for equipment or tool handles, as well as furniture; balls; tires; and any other structural or support elements in a mechanical, architectural, or any other product.

Devices with internal flexibility sipes, such as slits, provide improved flexibility, improved cushioning to absorb shock and/or shear forces, and improved stability of support. Siped devices can be used in any existing product that provides or utilizes cushioning and stability. These products include human and other footwear, both soles and uppers, as well as orthotics; athletic, occupational and medical equipment and apparel; padding or cushioning, such as for equipment or tool handles, as well as furniture; balls; tires; and any other structural or support elements in a mechanical, architectural, or any other product.

A method of differentially tuning a lower limb muscle in a human in need thereof is provided. The method includes placement of at least two calibrated, differential disturbances or protuberances under the human's feet thereby tuning a lower limb muscle.