A combinable sneaker with a replaceable male cushion has a sole provided with a female cushion formed integral with the sole. The female cushion has a plurality of chambers lengthwise and transverse, crossing each other to form corners. A male cushion is provided to releasably fit in the female cushion,...http://www.google.es/patents/US5907911?utm_source=gb-gplus-sharePatente US5907911 - Combinable sneaker with a replaceable male cushion
Combinable sneaker with a replaceable male cushion
