The heavy-duty Boondock boots are designed to provide industrial-grade protection from every angle. Starting with a Premium Timberland waterproof leather upper with an internal waterproof membrane for maximum waterproof protection, a molded Timberland Pro rubber toe protector is added that's as thick as a standard boot outsole and backed with a composite safety toe, a rigid external heel cup to support lateral movement, the Anti-Fatigue Technology footbed for all-day shock absorption and energy return, a breathable and moisture-wicking lining made of recycled material containing at least 50% recycled plastic. You'll also find protection from below with the lightweight, All-Weather thermoplastic polyurethane outsoles that are heat-, slip-, oil, and abrasion-resistant, non-marking, and offer enhanced traction in extreme environments.