Key Features Clipless mountain bike shoes with BOA® Dual BOA® Li2 system secure, on-the-fly adjustability Ultratac™ outsole balances grip and durability Reinforced toe for protection against rock strikes Exchangeable arch support options Dial in power and fit We're celebrating our 50th anniversary with a collection of gear and apparel that is a nod to both our past and our future. Dial in power and fit with the Fox Union BOA® 50th Limited Edition Shoes. Get more power to the pedal and customize your fit to perfection with the dual BOA® Li2 system featured in these trail-ready shoes. Built with robust features including a molded cap design to protect against rock strikes, the Fox Union mountain bike shoes handle the rigors of trail abuse with ease. Add this piece of our history and heritage to your life and celebrate with us as we continue to push boundaries into the next 50 years of performance products. Specifications Ultratac™ outsole balances grip and durability Dual Li2 Dials, powered by BOA® Fit System, provide on-the-fly micro-adjustability and improved power transfer to the pedals through a secure and formed fit Molded toe cap and reinforced toe for protection against rock strikes One-piece upper for a consistent, precise fit Weather-resistant welded construction protects from the elements Molded internal heel counter locks in heel for a premium, no-slip fit Tuned EVA midsole balances cushion, for all day riding comfort, with on-bike pedal efficiency High density textured print in high wear areas for improved durability Exchangeable arch support options to suit riders with lower to higher foot arches Lightweight, reinforced nylon shank adds stiffness to efficiency transfer power to the pedal 2-bolt cleat system is compatible with most major pedal suppliers "Power and Control" guide on bottom of shoe to help select cleat placement Materials: TPU, Eva, rubber Weight: 443g/15.6 ounces (size 9) Size & Fit Shoes have a standard fit that's true to size, take your normal shoe size Sizing is uniform across all models: Fox Union BOA®, Fox Union, Fox Union Flat and Fox Union Canvas Shoes comes with Low-Arch arch support installed Optional High-Arch arch support is included to adapt the fit to rider preference How Li2 BOA® Works Push in to engage Turn right to tighten and left to loosen Pull up for fast release