Classic crocs comfort evolves into the first workplace boot with ankle support and a leather upper Designed specifically for those in the foodservice and restaurant industry Crocs lock tread exceeds most industry slip resistance standards Slip resistant on dry, wet, soapy, oily, and greasy surfaces as tested by ASTM F1677 standards Shock-absorbing sole and ergonomic footbed minimize the load on feet, legs and back, while circulation nubs help stimulate blood flow Nubuck leather upper Ventilation ports for added breath-ability