Description | Shimano's gravel racing RX series are designed for all-day riding comfort and performance with reliable walking stability for quick stops at checkpoints. Optimally balanced for stiffness and walkability, the Shimano RX6 gravel bike shoes have carbon-reinforced soles that offer race-level rigidity for pedaling performance on day-long rides. Features | Carbon-reinforced sole provides race-level rigidity for enduring pedaling performance on day-long rides. Wide outsole pattern with TPU lugs for optimal on- and off-the-bike comfort and performance. System engineered with SPD pedals for maximum pedaling efficiency and stability. Lightweight gravel-race-inspired outsole. BOA® L6K dial allows quick and precise micro-adjustment.Surround wrapping upper pattern balances holding power and comfort. 2-hole cleat design compatible with SPD, Time Mountain, Look Mountain, and Crankbrothers Specs | Best Use Gravel Cycling Upper Synthetic leather/polyeurothane Footbed EVA Midsole Carbon Fiber Reinforced Nylon Outsole TPU Rubber Cleat Design 2-hole Footwear Closure BOA® L6K dial Traction Tread Yes Weight (Pair) 1 lb. 3.3 oz.