Men's Carhartt Detroit Nano Toe Work Shoes Nano Composite safety toe caps are lightweight, non-metallic/metal detector friendly and non-conductive to heat or cold. Nano Composite toe styles meet or exceed ASTM 2413-18 standards. Insite® footbeds provide high rebound cushion with podiatrist designed arch support. Carhartt LWD midsole provides elevated lightweight comfort with the expected Carhartt durability. Full ground contact slip-resistant outsole with durable rubber traction pods. FastDry™ Technology Lining wicks away sweat for comfort. Wide Toe Box For Maximum Comfort. Electrical Hazard footwear provides protection against live electrical currents and meets ASTM F2413-18 EH standards.