Tough-1 Sport Boots are designed to fit snug against the leg to help keep out water, mud, and dust. They feature a one-piece, user-friendly design to help provide extra support; contour design supports fetlock area. Tough-1 Vented Sport Boots have a double layer of air-flow (vented) neoprene and a single tab with "quick-grip" closure for easy on/offtab extension is easy to grip when removing and locks large tab in place.Hand washing is recommended.