Features of the Pearl Izumi Women's X-Alp Summit Shoe Advanced 3-Layer Seamless Composite Upper delivers all-day riding comfort and durability Anatomic Buckle Closure System reduces hot spots and removes pressure from your instep Low-cut construction for a light, fast Fit and feel Nylon composite shank for efficient power transfer and off-the-bike versatility Lightweight EVA Midsole for off-the-bike cushioning and all-day comfort Aggressive lugged Vibram Megagrip compound Outsole for superior traction and durability SPD Compatible