KEEN Utility Dover Carbon Toe USA Work Boots Take on tough jobs with a rugged work boot built for waterproof protection, supportive cushioning, and dependable traction. The waterproof leather upper features a breathable KEEN.Dry membrane and left and right asymmetrical non-metallic carbon-fiber safety toes for lightweight protection. A removable metatomical PU footbed, TPU shank, and KEEN Luftcell air-infused PU midsole provide cushioned comfort and midfoot support throughout the workday. The oil- and slip-resistant non-marking rubber outsole offers reliable footing, while the Konnectfit heel-capture system helps create a secure, locked-in feel.