Get up to 3X more flexibility in the forefoot. This waterproof work boot also features an air-infused midsole & heel shock-absorption zone for all-day support. KEEN.DRY waterproof, breathable membrane seals out moisture from the inside Heat-resistant rubber outsole rated up to 572°F/300°C Assembled in the USA using the finest materials from around the world. KEEN.FUSION construction fuses the upper to the sole for a longer-lasting bond without glues or solvents. KEEN.BELLOWS FLEX technology adds an engineered flex zone in the forefoot area for up to 3x easier bending, flexing, and knee-down work Nylon shank for midfoot support Environmentally preferred premium leather from LWG-certified tannery for cleaner water PFAS-free, durable water repellent repels water just as well as forever chemicals without harming the planet KEEN Luftcell midsole infused with 100,000 microscopic air bubbles per cubic centimeter for all-day comfort KEEN LuftCore air-injected shock absorption zone in the heel for added cushioning Oil- and slip-resistant non-marking rubber outsole Electrical hazard (EH) or Electric Shock Resistant (ESR) footwear helps provide a secondary source of protection in case of accidental outsole contact with live electrical circuits Waterproof leather upper Removable, dual-density PolyAer insole with aerated pillow-top cushioning for comfort Locking non-metallic lace hooks Zinc Hardware Leather Thickness: 1.60-1.80mm Mesh liner provides breathability to help keep feet cool in warm environments Left and right asymmetrical, non-metallic carbon toes offer unobtrusive fit and are 15% lighter than steel 90° heel (5/8'' Height) helps provide secure footing on ladders, scaffolding, or loose, uneven surfaces Meets ASTM F3445-21 and F2413-18 M I/75 C/75 MT/75 EH standards Meets ASTM F1677-96 Mark II non-slip testing standards Midsole meets ASTM D471-06 903# oil and isooctane chemical resistance standards Weight: 29.81oz / 845g Shaft Height: 7.52in / 191mm Heel Height: 1.02in / 26mm Heel-to-Toe Drop: 0.47in / 12mm Duty type: Medium