A bowling shoe construction includes a shoe upper, and a shoe sole mounted to the shoe upper. The shoe sole has a tread surface and a slide area on the tread surface extending longitudinally from a toe end of the shoe sole rearwardly to an arch portion thereof, and extending laterally across the entire...http://www.google.es/patents/US5542198?utm_source=gb-gplus-sharePatente US5542198 - Bowling shoe construction with removable slide pad and heel
Bowling shoe construction with removable slide pad and heel
