Disclosed are systems, methods, procedures and devices incorporating a variety of impact absorbing structures (IAS) and/or buckling structure arrays into shoes, sneakers and/or other footwear, which can greatly enhance wearer comfort, improve shoe durability, improve athletic performance, reduce cost of manufacture and/or minimize impact forces to the foot, legs and/or lower body. Included herein are various types of footwear, foot coverings, lower extremity garments and related orthopedic sleeves and/or orthotics.

A shoe insert device relieves pressure on a heel when a shoe is worn. The device includes a panel configured to be positioned in a shoe. A heel alignment pad is U-shaped. The heel alignment pad is positioned on and extends upwardly from an upper surface of the panel wherein the heel alignment pad is configured to extend around and support a heel of the foot positioned in the shoe.

There is provided an insole for a sport footwear, the insole comprises: a forefoot portion comprising an incliner, wherein a thickness of an inner side of the forefoot portion is greater than a thickness of an outer side of the forefoot portion; a midfoot portion having an arch extending from an underside of the insole; and a rearfoot portion comprising an incliner, wherein a thickness of an inner side of the rearfoot portion is greater than a thickness of an outer side of the rearfoot portion; and wherein at least one of the forefoot portion, the midfoot portion and the rearfoot portion comprises an upper surface having an upward inclination of about 2 to about 9 along a path from the outer side of the insole to the inner side of the insole and perpendicular to a lengthwise axis of the insole.

Provided is an insole to suppress, in a foot sole, an excessive outward displacement of the center of body gravity. An insole to be used as a shoe insole includes three areas divided from a top surface of the insole. The three areas include a forefoot area, a midfoot area, and a hindfoot area. In an outer section, all three areas are provided with an outer forefoot protrusion, an outer midfoot protrusion, and an outer hindfoot protrusion that protrude upwards from the top surface of the insole or downwards from a bottom surface of the insole. The protrusions are formed to have respective heights of protrusion distinctive from one another within a range of 0.2 mm or higher and 15 mm or lower.

Provided is an insole to suppress, in a foot sole, an excessive outward displacement of the center of body gravity. An insole to be used as a shoe insole includes three areas divided from a top surface of the insole. The three areas include a forefoot area, a midfoot area, and a hindfoot area. In an outer section, all three areas are provided with an outer forefoot protrusion, an outer midfoot protrusion, and an outer hindfoot protrusion that protrude upwards from the top surface of the insole or downwards from a bottom surface of the insole. The protrusions are formed to have respective heights of protrusion distinctive from one another within a range of 0.2 mm or higher and 15 mm or lower.

A footwear kit, comprising: left and right items of footwear; left and right forefoot inserts receivable in the left and right footwear items, respectively, so as to tighten the fit thereof to a wearer; a fitting guide directing that, should the wearer have an orthotic for either or each foot, a said forefoot insert be arranged such that it underlies the orthotic in the footwear item for that foot if the fit of that footwear item with only the orthotic therein is loose.

A footwear kit, comprising: left and right items of footwear; left and right forefoot inserts receivable in the left and right footwear items, respectively, so as to tighten the fit thereof to a wearer; a fitting guide directing that, should the wearer have an orthotic for either or each foot, a said forefoot insert be arranged such that it underlies the orthotic in the footwear item for that foot if the fit of that footwear item with only the orthotic therein is loose.

An insole board for a high-heel shoe, said insole board includes a heel supporting area having a concave heel cup adapted to underlie a heel of the wearer, a medial arch support area adapted to underlie the arch of the wearer's foot and extending toeward of but short of the ball of the wearer's foot, and a forefoot area adapted to underlie the ball of the foot and forefoot of the wearer. The medial arch support area has a raised contour for supporting a portion of a sole of the wearer's foot underlying the wearer's arch, and the forefoot support area includes a hollow having a resiliently deformable material therein.

An article of footwear configured for prolonged casual and non-casual uses having an upper configured for easy installation and removal of the article of footwear with or without the use of fasteners, a sole, and a substantially continuous series of alternating ribs and grooves on a footbed of the sole extending from a forefoot region to a heel region. The ribs and grooves have base widths that are greater in an arch region of the footbed than the forefoot and heel regions of the footbed. The series of alternating transverse ribs and grooves are oriented from a lateral side region of the footbed to a medial side region of the footbed.

A shoe insert assembly includes a panel that is selectively positioned in a shoe. The panel has an opening therein and the opening is aligned with a heel when the shoe is worn thereby facilitating pressure to be relieved from the heel. A cushion is positioned within the panel and the cushion absorbs pressure exerted by a foot onto the shoe thereby enhancing comfort of the shoe. A pad is coupled to the panel and the pad is aligned with an arch in the foot when the shoe is worn thereby enhancing comfort of the shoe.