21% offBuilt for long warehouse shifts, these menâs waterproof WorkNano composite-toe work boots combine ASTM-certified slip resistance, arch support, and responsive ETPU cushioning for steady, cushioned comfort on hard concrete floors. Lightweight and max cushion comfort help reduce fatigue and keep high-step workers moving confidently from clock-in to clock-out. At just 19.61 oz per shoe, theyâre up to 35% lighter than leading brands and have higher slip resistance than competitors.PU & Oxford Upper Waterproof MembraneASTM F2413-24 I/C Nano Toe ASTM F2413-24 SR Slip Resistant ASTM F2413-24 EH Electric Hazard