Abstract: A shoe sole having improved cushioning characteristics is disclosed. The sole includes a midsole having a top layer of material and a bottom layer of material. In one embodiment, the top layer of material may be harder than the bottom layer of material. A pattern of lugs defining a wave may be formed on the bottom layer of material. The wave may generally be in the shape of sine wave so as to provide improved cushioning characteristics for the sole. An outsole may also be formed on the bottom layer of material and an upper may be connected to the top layer of material, such that a shoe is formed.

Abstract: A shoe sole having improved cushioning characteristics is disclosed. The sole includes a midsole having a top layer of material and a bottom layer of material. In one embodiment, the top layer of material may be harder than the bottom layer of material. A pattern of lugs defining a wave may be formed on the bottom layer of material. The wave may generally be in the shape of sine wave so as to provide improved cushioning characteristics for the sole. An outsole may also be formed on the bottom layer of material and an upper may be connected to the top layer of material, such that a shoe is formed.

Abstract: A shoe sole having improved cushioning characteristics is disclosed. The sole includes a midsole having a top layer of material and a bottom layer of material. In one embodiment, the top layer of material may be harder than the bottom layer of material. A pattern of lugs defining a wave may be formed on the bottom layer of material. The wave may generally be in the shape of sine wave so as to provide improved cushioning characteristics for the sole. An outsole may also be formed on the bottom layer of material and an upper may be connected to the top layer of material, such that a shoe is formed.

Abstract: A suspension heel is provided for use with footwear, such as high heeled shoes, to provide cushioning to the wearer. The suspension heel includes a heel shaft connected to the shoe sole and a compliant heel plug attached to the heel shaft. The shaft includes a cavity or other receptacle for receiving the compliant heel plug. The suspension heel provides cushioning as well as stability for the wearer of the footwear, while maintaining aesthetic style. A relief detail formed by the compliant heel plug and the shaft provides compliance by compressing when a force is applied. For instance, as a person walks in the shoe, ground contact applies a force to the suspension heel. The relief detail deforms or compresses in response to the force, attenuating it and providing cushioning to the wearer.

Abstract: A shoe sole having improved cushioning characteristics is disclosed. The sole includes a midsole having a top layer of material and a bottom layer of material. In one embodiment, the top layer of material may be harder than the bottom layer of material. A pattern of lugs defining a wave may be formed on the bottom layer of material. The wave may generally be in the shape of sine wave so as to provide improved cushioning characteristics for the sole. An outsole may also be formed on the bottom layer of material and an upper may be connected to the top layer of material, such that a shoe is formed.

Abstract: A suspension heel is provided for use with footwear, such as high heeled shoes, to provide cushioning to the wearer. The suspension heel includes a heel shaft connected to the shoe sole and a compliant heel plug attached to the heel shaft. The shaft includes a cavity or other receptacle for receiving the compliant heel plug. The suspension heel provides cushioning as well as stability for the wearer of the footwear, while maintaining aesthetic style. A relief detail formed by the compliant heel plug and the shaft provides compliance by compressing when a force is applied. For instance, as a person walks in the shoe, ground contact applies a force to the suspension heel. The relief detail deforms or compresses in response to the force, attenuating it and providing cushioning to the wearer.

Abstract: An article of footwear or shoe assembly, which is designed to allow for adjustment of stiffness in its sole unit, is disclosed. The article of footwear is preferably constructed to enhance stability, support and comfort of a wearer on varied terrain. Among other elements, the shoe assembly preferably includes an adjustable shank disposed within the shoe to allow for adjustment in the stiffness of the sole unit. In certain embodiments, the adjustable shank further includes a plurality of segments adapted to be manipulated in order to vary the stiffness.

Abstract: The present invention provides a wraparound lacing system for use with footwear. The lacing system includes a lace which encircles the housing of the article of footwear in a spiral, helical, coiled or similar wound wraparound pattern. The housing includes finger members which independently adjust to the contours of the wearer's foot while providing a snug and secure fit. The housing of the upper and the midsole includes channels therein which receive the wraparound lace. The lace can be affixed at one or both ends to the midsole or to the upper. Removable lace end keepers on the upper permit the user to adjust the length of the lace. Recessed cavities may be positioned along the lacing channels to promote easy adjustment of the lace. The lace may run along channels formed between fingers and an overlying shell structure. The lace may run through a tube structure within the channels.

Abstract: An article of footwear or shoe assembly, which is designed to allow for adjustment of stiffness in its sole unit, is disclosed. The article of footwear is preferably constructed to enhance stability, support and comfort of a wearer on varied terrain. Among other elements, the shoe assembly preferably includes an adjustable shank disposed within the shoe to allow for adjustment in the stiffness of the sole unit. In certain embodiments, the adjustable shank further includes a plurality of segments adapted to be manipulated in order to vary the stiffness.

Abstract: The present invention provides a wraparound lacing system for use with footwear. The lacing system includes a lace which encircles the housing of the article of footwear in a spiral, helical, coiled or similar wound wraparound pattern. The housing includes finger members which independently adjust to the contours of the wearer's foot while providing a snug and secure fit. The housing of the upper and the midsole includes channels therein which receive the wraparound lace. The lace can be affixed at one or both ends to the midsole or to the upper. Removable lace end keepers on the upper permit the user to adjust the length of the lace. Recessed cavities may be positioned along the lacing channels to promote easy adjustment of the lace. The lace may run along channels formed between fingers and an overlying shell structure. The lace may run through a tube structure within the channels.