The Boa closures on the PEARL iZUMi X-Alp Launch II mountain bike shoes make small, bidirectional adjustments a breeze, so you can dial in the fit with a twist of your wrist. Features Bonded seamless uppers deliver all-day riding comfort and durability Bidirectional closures wrap your feet for a semi-custom, secure fit Boa IP1 reels allow 1mm micro-adjustability and pop up for full release Carbon fiber injected composite shanks supply efficient power transfer Lightweight EVA midsoles provide off-the-bike cushioning and all-day comfort Carbon rubber lugged outsoles deliver traction and durability SPD compatible Imported. Technical specs Best Use Mountain Biking Upper 89% rubber plastic/11% textile Lining Unavailable Footbed EVA Midsole Unavailable Outsole 68% rubber/20% EVA/10% nylon plastic/2% steel Cleat Design 2-hole SPD Compatible Yes Time Mountain Compatible Yes Look Mountain Compatible Yes Crankbrothers Compatible Yes Footwear Closure Ratcheting Cable Lace Traction Tread Yes Weight (Pair) 1 lb. 0.8 oz. Gender Men's