The heavy-duty insulated Boondock manufacturing boots are designed to provide industrial-grade protection from every angle. Starting with their Premium Timberland waterproof leather upper with an internal waterproof, breathable membrane for maximum waterproof protection, 200 grams of insulation is added for cold-weather comfort and to retain heat, the molded Timberland Pro rubber toe protector 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, and the Anti-Fatigue Technology footbed for all-day shock absorption and energy return. Their breathable, moisture-wicking linings are made of recycled fabric containing at least 50% recycled plastic. You’ll also find protection from below with the All-Weather thermoplastic polyurethane outsole that is heat-resistant up to 120 degrees Celsius, as well as slip-, oil, and abrasion-resistant, non-marking, and offers enhanced traction in extreme environments.