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. These are clipless mountain bike shoes featuring a low-profile Velcro strap and lace system and an Ultratac™ outsole that balances grip and durability. They have a reinforced toe for protection against rock strikes and come with exchangeable arch support options. The Ultratac™ outsole balances grip and durability, while the low-profile Velcro strap and lace system optimizes fit and comfort. A molded toe cap and reinforced toe provide protection against rock strikes. The one-piece upper offers a consistent, precise fit, and the weather-resistant welded construction protects from the elements. A molded internal heel counter locks in the heel for a premium, no-slip fit. The tuned EVA midsole balances cushion for all-day riding comfort with on-bike pedal efficiency. High-density textured print in high-wear areas improves 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 helps select cleat placement. Materials: TPU, EVA, rubber. Weight: 445g/16 ounces. The 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. They come with Low-Arch arch support installed. Optional High-Arch arch support is included to adapt the fit to rider preference.