A shoe includes a sole (2) that extends from a rear heel area (6) through a metatarsal area (7) to a front ball or toe area (8), the sole being composed of a sole body (10) and a sole covering (11) formed on the underside of the sole body (10) and a recess (13) extending approximately from metatarsal...http://www.google.fr/patents/US6341432?utm_source=gb-gplus-shareBrevet US6341432 - Shoe
