The Tracklayer is a rugged 8'' lace to toe work boot that can stand rough conditions with a steel toe, electrical hazard protection, and live up to it's name with slip resistance. The Extended Wear Outsole compound wears for longer performance in extreme environments. ASTM F2413-11 I/75 C/75 Steel Toe. Waterproof Full Grain Leather Upper. Nylon Mesh With Thinsulate Lining. Nylex and EVA Sock Liner. PVC Midsole. T163 Outsole. Goodyear Welt Construction.