Fox Union BOA Flat Shoes

Flat-pedal MTB shoes with dual BOA® fit system and Ultratac™ outsole

The Fox Union BOA Flat Shoes are designed to provide a secure, adjustable fit and consistent pedal control for mountain bike riders who prefer flat-pedal performance. Featuring a dual BOA® Li2 system, the shoes allow precise micro-adjustments on the fly, ensuring stability and comfort during aggressive trail riding. The engineered low-profile design uses a custom-tuned EVA midsole to enhance pedal feel, support, and shock absorption without adding unnecessary weight.

A molded toe cap helps protect against rock strikes and trail impacts, while an internal stiffening plate improves power transfer to the pedals without compromising flexibility for hike-a-bike sections. The Ultratac™ rubber outsole delivers reliable grip, using custom hex-shaped lugs engineered to interface with flat pedals for improved traction and control.

These shoes are built for riders who need a balance of pedal connectivity, durability, and all-day comfort, whether navigating technical singletrack or transitioning to post-ride activities.

• Flat-pedal mountain bike shoe design• Dual BOA® Li2 dial system for micro-adjustable fit• Ultratac™ rubber outsole with hex-shaped tread for grip• Reinforced toe cap for impact protection• Lightweight EVA midsole for pedal feel and comfort• Internal stiffening plate for improved power transfer

Suitable for trail, enduro, and all-mountain riders seeking adjustable fit, durable protection, and confident flat-pedal performance.