Upper is Leather. Profile is The most supportive free-running shoe for moving over, under and through the streets. Traction is achieved with a combination high-grip rubber in the forefoot and durable Aosta rubber outsole in the heel. Stability is maximized by an external heel counter and variable width lacing. Cushioning is achieved with a dual Density CMEVA midsole compound. Durability is enhanced with an extra-padded, seamless forefoot and rubber toe bumper.