Left and right asymmetrical aluminum toes. Built on a women's specific last. TPU shank for midfoot support. Electro Static Dissipative (ESD) footwear is constructed to reduce excess static electricity. KEEN.ReGEN: A lightweight, compression-resisting midsole. Oil- and slip-resistant non-marking rubber outsole. Non-mutilating upper reduces the chance of marketing or scratching surfaces. Removable metatomical PU footbed. CLEANSPORT NXT(TM) for natural odor protection.