Lug Sole sole Built-in orthotic EVA footbed helps realign your foot and ankle, relieving heel and lower body pain. Deep heel cup helps support and stabilize your foot. Nubuck polyurethane upper with padded neoprene lining provides lasting durability and comfort. Nubuck polyurethane upper, padded neoprene upper lining, EVA insole and midsole, rubber outsole. Care: Wipe with a damp cloth.