These men's athletic work shoes are built around an aluminum alloy toe cap engineered to meet ASTM F2412-18A & F2413 safety standards and EN20345:2022 testing, having passed impact resistance testing at 12.7mm and puncture resistance above 1200N. Choosing aluminum alloy instead of steel keeps the toe cap about 26% lighter, so your feet feel less fatigue after a full shift standing or walking on concrete. The mesh upper with split leather overlays keeps air moving through the shoe, cutting down on sweat and odor during long hours in warehouses, garages, factories, or on construction sites. A slip-resistant, shockproof rubber sole adds traction on wet floors, electrical work areas, tunnels, and uneven job sites, while the soft inner lining cushions the ankle to reduce fatigue. The sole and upper were put through 125,000 and 50,000 bend cycles respectively without delamination, so the shoe holds its shape through daily wear. This pair ships in US men's size 11 with a standard medium (M) width, weighing about 2.69 lbs for the pair.