We designed our heavy-duty Boondock manufacturing boots to provide industrial-grade protection from every angle while tackling slippery and wet job sites. Starting with their 6" tall premium Timberland waterproof leather uppers, we added internal waterproof membranes to help make them impervious to the wettest conditions, molded rubber toe protectors backed with composite safety toes powered by Carbon Shield technology for extra strength, electrical hazard protection, ExoSpine technology and fiberglass shanks for lasting structural support, plus Vibram Fire & Ice rubber outsoles that maintain their flexibility in freezing temperatures. For all-day comfort, you'll appreciate their StepPropel footbeds that compress to store your energy and then rebound to release that energy back to your feet with every step, breathable and moisture-wicking linings made of ReBOTL fabric containing at least 50% recycled plastic.