The present invention is a sport shoe having a shoe upper with an interior for receiving a human foot and a bottom surface formed thereon, a removable foresole attached to a forward portion of the bottom surface of the shoe upper and having a toe receptacle for fitting against a toe area of the shoe...http://www.google.fr/patents/US5410821?utm_source=gb-gplus-shareBrevet US5410821 - Shoe with interchangable soles
