A footwear cover that includes a sole portion that includes an inner layer and an outer layer that cooperate to define at least a first interior space therebetween, at least a first bladder member disposed in the first interior space, and an upper connected to the sole portion. The first bladder member defines a bladder interior that includes a non-Newtonian fluid disposed therein. The upper includes at least a first securement strap for securing the footwear cover in a closed position.

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 football shoe or football boot includes a sole and an upper. The upper includes a central region and one or more protuberances at each side of the central region. The one or more protuberances on each side define a crest alongside the central region, such that the crests and the central region define a ball control region. The protuberances are formed by incorporation of fluid material with the upper, in direct contact with the upper.

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 bladder for an article of footwear includes a first chamber having a first segment extending along a first side of the bladder and a second segment formed on an opposite side of the bladder from the first segment. The bladder further includes a second chamber at least partially surrounded by the first chamber and disposed between the first segment and the second segment. A manifold is in direct fluid communication with each of the first segment of the first chamber, the second segment of the first chamber, and the second chamber. A web area connects each of the first chamber, the second chamber, and the manifold. The bladder may include a first series of ports formed in the first segment of the first chamber and a second series of ports formed in the second segment of the first chamber.

A bladder for an article of footwear extends from an anterior end to a posterior end and includes a first chamber disposed in an interior region of the bladder and a second chamber at least partially surrounding the first chamber. The first chamber includes a first interior void having a first pressure and the second chamber includes a second interior void having a second pressure. In some implementations, the second chamber includes a plurality of lobes arranged in series and each having a first end, a second end, and an intermediate portion disposed between the first end and the second end. Each lobe has a greater thickness at the intermediate portion than at the first end and the second end, such that each lobe tapers from the intermediate portion to the first end and the second end.

Bladder systems for footwear uppers, footwear components (e.g., uppers), and articles of footwear including the bladder systems, and/or methods of making and using such bladder systems are described. The bladder systems may include two or more bladder pods engaged together by one or more elastic connectors. The elastic connector(s) may enable the bladder system to fit snugly around the wearer's ankle and/or heel area while still allowing some relative movement between the bladder pods, e.g., as a wearer moves in an article of footwear. In this manner, the bladder systems provide support and a snug fit and return to its/their original size, shape, and/or location once the force from the wearer's movement is removed or sufficiently relaxed. Additionally or alternatively, the bladder systems may provide impact force attenuation properties, e.g., to protect the wearer's ankle and/or heel.

A football shoe or football boot includes a sole and an upper. The upper includes a central region and one or more protuberances at each side of the central region. The one or more protuberances on each side define a crest alongside the central region, such that the crests and the central region define a ball control region. The protuberances are formed by incorporation of fluid material with the upper, in direct contact with the upper.

An article of footwear may include an upper with an outer layer, an inner layer, and a chamber element positioned at least partially between the outer layer and the upper layer. The chamber element may be formed of two layers of a transparent colored polymer material and may be sealed to enclose a fluid. The chamber element may also have a plurality of subchambers. The outer layer may have a plurality of apertures. Each subchamber may protrude at least partially through a corresponding one of the apertures.

An upper structure adapted for engaging with a sole to form a shoe body includes a main body. The main body has an outer surface and an inner surface. The inner surface and the sole enclose an internal space. Each of at least two lateral sides of the inner surface has a gel layer. The two gel layers correspond to two longer sides of the sole respectively. Each of the gel layers is composed of a gel of non-Newtonian fluid to engage with the main body.