The Wolverine Rush ESD Carbonmax composite toe hikers have combined an athletic shoe with work safety. This shoe features the CarbonMAX nanotechnology safety toe providing you with electrical hazard protection. The rubber lug outsole is slip resistant providing you with the best grip possible in various conditions. For your comfort, this shoe is lined with a moisture wicking mesh keeping your feet cool and dry. Wolverine composite-toe boots and shoes are lightweight, non-conductive to heat or cold, and help protect the foot from falling or rolling objects. Rated ASTM F2413-11 I/75 C/75. Material: Mesh, Rubber.