You'll take rugged conditions in stride in Carhartt's 6-inch bison safety-toe work boot. Built of oil-tanned leather, it features a waterproof membrane and the quality of direct-attached welt construction. Good grip is assured; the dual-density PU (polyurethane) outsole is oil, chemical and slip resistant. All-day comfort in enhanced with an OrthoLite® insole and padded collar plus an OrthoLite® comfort tongue. The boot also features a molded TPU (thermoplastic polyurethane) heel counter for stability. Built with a safety toe that is ASTM 2413-05, EH rated.