A sole structure for an article of footwear includes a chassis having a first side defining a footbed and a second side disposed on an opposite side from the first side, a first bladder attached to the second side of the chassis and including at least one first chamber defining a first polar axis oriented in a first direction, and a second bladder attached to second side of the chassis and including at least one second chamber defining a second polar axis oriented in a second direction transverse to the first direction.

The present invention is a composite sole used in footwear. The composite sole comprises of two components, a foot support that suspends the foot and a structural chassis. The foot support is a flexible material that attaches to the perimeter of the structural chassis and conforms to the foot. The structural chassis provides rigidity and the foot support provides sufficient strength to suspend the foot during rigorous physical activity. The chassis and foot support performs similarly to that of a trampoline; however, its function has a plurality of features not found in a trampoline. The structural chassis is designed to provide a multitude of physical and performance characteristics in the heel, arch, forefoot and toe area to assist in pronation, plantar support, energy return, upper shoe comfort, toe-off and cushion at impact. The structural chassis has air vents, allowing air to enter and the foot support includes perforations allowing this air to ventilate the underside of foot.

The present invention is a composite sole used in footwear. The composite sole comprises of two components, a foot support that suspends the foot and a structural chassis. The foot support is a flexible material that attaches to the perimeter of the structural chassis and conforms to the foot. The structural chassis provides rigidity and the foot support provides sufficient strength to suspend the foot during rigorous physical activity. The chassis and foot support performs similarly to that of a trampoline; however, its function has a plurality of features not found in a trampoline. The structural chassis is designed to provide a multitude of physical and performance characteristics in the heel, arch, forefoot and toe area to assist in pronation, plantar support, energy return, upper shoe comfort, toe-off and cushion at impact. The structural chassis has air vents, allowing air to enter and the foot support includes perforations allowing this air to ventilate the underside of foot.

A reinforcement structure is disposed on a midsole of a shoe. A first bar extends from a first point in a medial side of the midsole to a second point in the medial side of the midsole. The second point is closer to a toe of the shoe than the first point. A second bar extends from a third point in the medial side of the midsole to a fourth point in a lateral side of the midsole. The fourth point being closer to the toe of the shoe than the third point. A third bar extending from a fifth point in the medial side of the midsole to a sixth point in the lateral side of the midsole. The sixth point being closer to the toe of the shoe than the fifth point. The third bar extending further toward the toe of the shoe than the second bar.

An article may include a first polymeric material layer having a surface. A first conductive trace may form at least a portion of the first layer surface. The article may further include a second polymeric material layer. The second layer may have a first surface, a portion of the second layer first surface being bonded to a portion of the first layer surface. The second layer may have a portion of a channel defined therein, the channel at least partially coinciding with a portion of the first conductive trace. The article may also include a first patch interposed between the first layer surface and the second layer first surface. The first patch may span the channel and cover a portion of the first conductive trace.

An article may include a first polymeric material layer having a surface. A first conductive trace may form at least a portion of the first layer surface. The article may further include a second polymeric material layer. The second layer may have a first surface, a portion of the second layer first surface being bonded to a portion of the first layer surface. The second layer may have a portion of a channel defined therein, the channel at least partially coinciding with a portion of the first conductive trace. The article may also include a first patch interposed between the first layer surface and the second layer first surface. The first patch may span the channel and cover a portion of the first conductive trace.

Sole structures (e.g., midsoles and/or outsoles) and articles of footwear include heel-supporting areas and/or forefoot-supporting areas that include a central area (e.g., a central recessed area) and a plurality of surrounding rings. Additionally or alternatively, the sole structures (e.g., midsoles and/or outsoles) may include bands of material defined by recessed grooves to provide a bumpstop type impact-force attenuating structure.

The invention relates to footwear and portions thereof having structural features and decorative designs thereon, and related systems and methods for manufacturing same. An exemplary method for providing a feature on a surface of an object includes positioning a laser proximate the surface of the object, directing a laser beam from the laser to the surface of the object to mark or engrave at least a portion of the surface of the object, and moving at least one of the laser and the object to create a pattern on the surface of the object, the pattern providing at least one of an aesthetic and a structural feature on the surface of the object.

Footwear articles for walking are provided. In one example, a footwear article may include a midsole with a lower surface of constant curvature extending from a heel of the midsole to a toe of the midsole, wherein the lower surface maintains the constant curvature throughout a stance phase of a walking gait. In this way, a smooth step-to-step transition and a smaller range of oscillation of the center of mass of the wearer is achieved, and energy expenditure during walking is reduced. In turn, a wearer of the footwear article may smoothly walk for extended periods of time with reduced fatigue.

A sole structure for an article of footwear includes an outsole defining a ground-contacting surface, a midsole disposed between the outsole and the upper, and a plate attached to the midsole and defining a recess extending in a direction away from the outsole and toward the upper, the recess including a first retainer. The sole structure further includes a first cushion having a first portion received within the recess, the first portion engaging the first retainer to maintain a desired position of the first cushion relative to the plate.