Premium full-grain leather Internal, anatomical, high-rebound polyurethane-and-rubber Anti-Fatigue Technology metartarsal guard for comfort and protection Asymmetrical composite safety toe Electrical hazard protection Mutilation-free upper Nylon shank for structural support Anti-Fatigue Technology polyurethane midsole for shock absorption and energy return Padded top collar for comfort Molded Timberland PRO® rubber toe Active heel-lock lacing system for secure heel set and personalized fit Breathable and moisture-wicking lining with antimicrobial treatment for odor control Cement construction for flexibility Lightweight, cushioning EVA midsole Heat-, oil-, slip-, and abrasion-resistant, non-marking rubber outsole with Ladder Lock™ technology