Durability and comfort for heel to toe. The all-new Fox Union Clipless shoes are set to take your mountain bike adventures to new and more confident levels. 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. Key features include a clipless mountain bike shoe design with a low-profile Velcro strap and lace system. The Ultratac™ outsole balances grip and durability. Reinforced toe provides protection against rock strikes, and there are exchangeable arch support options. The Ultratac™ outsole offers superior grip and durability. The low-profile Velcro strap and lace system optimize fit and comfort. A molded toe cap and reinforced toe protect against rock strikes. The one-piece upper ensures a consistent, precise fit. Weather-resistant welded construction shields from the elements. The molded internal heel counter secures the heel for a premium, no-slip fit. The tuned EVA midsole balances all-day riding comfort with on-bike pedal efficiency. High-density textured print in high-wear areas enhances durability. Exchangeable arch support options cater to riders with lower to higher foot arches. A lightweight, reinforced nylon shank adds stiffness for efficient power transfer to the pedal. The 2-bolt cleat system is compatible with most major pedal suppliers. A 'Power and Control' guide on the bottom of the shoe assists with cleat placement. Materials include TPU, Eva, and rubber. Weight is 445g/16 ounces. 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.