LIGHTWEIGHT & DURABLE: Ud Foam midsole is high rebound, lightweight, and long-lasting for a pure running experience. HIGH REBOUND: Ultra-Rebound insole provides maximum energy return against the foot. Perfect for high-mileage running athletes. SECURE BREATHABLE FIT: Features a one-piece mesh upper with an asymmetrical lacing system. The heel and mid foot have a snugger fit providing excellent lock in capability and there is additional room in the forefoot for superior comfort and performance. ADDED TRACTION: 3-pieced lugged traction rubber outsole is capable on the road or on moderate trail surfaces and in varying climate conditions. A serious runner’s new favorite companion. The third generation of our CTM Ultra platform is perfect for high mileage running athletes. Performs and responds at varying distances. Features a Ud Foam midsole and the newest evolution of a one piece engineered mesh upper with asymmetrical lacing system. Fast, lightweight, and amazingly durable, you can pile up the miles in this premium, technical running shoe.