Design: Seamless, bounded upper for minimal pressure points BOA Li2 closure for maximum power and premium resolution Weight: 12 oz/340 g In-Shoe Comfort: X-Comfort Zone-Power Zone for improved arch support and power transfer EVA integrated for standard comfort Durability & Traction: Ventilating nylon outsole with carbon injection for minimal fatigue and numbness Ergo Grip 2 nylon and fiberglass for optimal traction and mud-cleaning