Crocs Graphic Star Wars Clogs features an enclosed toe design and thicker metatarsal area protect foot from spills. Crocs Lock slip resistant tread. • Fully molded EV upper • Heel strap for a secure fit • Contoured footbed for comfort • Waterproof Slip Resistant Non-slip shoes are designed to prevent wearers from slipping and falling wet, oily, or otherwise slick surfaces. The main thing that sets them apart from standard shoes is a rubber sole, which provides better grip and traction, making them perfect health care shoes for nurses and doctors.