US Patent 7290354 Shoe suspension system

A shoe suspension system for use with a shoe or boot having an upper and lower sole. The system includes a first tandem hinge pivotally engaged between the upper toe sole and the lower toe sole which opens and closes parallel to the longitudinal axis of the shoe a plurality of tandem hinges pivotally engaged between the upper mid heel sole and the lower sole which also open and close parallel to the longitudinal axis of the shoe and return springs engaged between the upper mid heel sole and the lower sole.