Sleek and athletic, the low cut X Ultra LTR has a durable leather upper for added style and added durability. The advanced chassis system provides stability, foot control and protection. It includes an EVA midsole for active comfort and less fatigue, with a TPU chassis in the middle and a rubber outsole for protection and precision. Contagrip is a mix of compound, density and lug geometry to ensure grip, durability and less weight, all optimised for fantastic traction on any surface. OrthoLite advanced, proprietary polyurethane formula with recycled rubber content delivers a combination of benefits unmatched by any other insole manufacturer. Material: Leather.