PFAS-free, durable water repellant repels water just as well as forever chemicals, Heat-resistant rubber outsole rated up to 572F/300C, Siped outsole channels water away for better grip on wet surfaces, Cement construction for flexible, lightweight performance, Shellback heel support, Premium leather upper with KEEN.DRY waterproof, breathable membrane that seals out moisture from the inside, KEEN Luftcell midsole infused with 100,000 microscopic air bubbles per cubic centimeter for all-day comfort, Oil- and slip-resisting non-marking rubber outsole, Electrical hazard or Electric Shock Resistant footwear helps provide a secondary source of protection in case of accidental outsole contact with live electrical circuits, Removeable metatomical insole for comfort and support,