Anti-Fatigue Technology - A comfort system designed with shock-absorbing, geometrical technology that returns energy back to the foot to deliver all-day support and comfortComposite Safety Toe - Lightweight, non-metallic, asymmetrical-shaped toe cap. Meets US and Canadian safety standards including ASTM F2412-18a and ASTM F2413-18 I and C impact and compression safety standards and CAN/CSA-Z195-14 Grade 1Timberland PRO Rubber - Heat-resistant, durable rubber compound offers enhanced slip, oil and abrasion resistanceReBOTL Material - Products with ReBOTL material contain at least 50% recycled PET (recycled polyethylene terephthalate, the stuff plastic bottles are made of) excepting trace materialsElectrical Hazard Protection - Provides secondary underfoot protection against live electrical circuits, electrically energized conductors, parts or apparatus and meets ASTM F2412-18a, ASTM F2413-18, ASTM F2892-18 and CAN/CSA-Z195-14 standards