These Carhartt Carbon Nano Toe Slip-On Work Shoes are lightweight yet durable and will keep you protected, comfortable, and steady on your feet all workday long. Style number: CMO3461 (Black Oil Tanned Leather). Oil-tanned leather upper. Carbon Nano safety toe protects against impact and compression hazards while being lighter than traditional safety toe protection. Meets ASTM 2413-17 standards. Features secondary protection against incidental contact with electrical circuits of 18,000 volts or less under dry conditions; Meets ASTM 2413-18 electrical hazard standards. FastDry lining wicks away sweat and fights odors for a fresher, odor-free environment. Removable Insite technology footbed engineered with maximum arch support to reduce foot fatigue. Cushioned PU midsole for underfoot support and shock absorption. Lightweight rubber outsole for reliable traction. Imported. Measurements: Weight: 1 lb 4 oz Product measurements were taken using size 12, width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.