Fox Racing Union Boa Flat Moutain Bike Shoe

Dual BOA® adjustability and Ultratac™ grip make the Fox Union BOA Flat a top choice for flat pedal riders

What Our Gearhead® Experts Are Saying:

"The Fox Union BOA Flat is my go-to for aggressive riding on flat pedals. The dual BOA® system lets me dial in the perfect fit, while the Ultratac™ rubber outsole grips pedals like glue. The stiffened midsole provides great power transfer without sacrificing comfort, and the molded toe cap adds extra protection from unexpected rock strikes. Whether I’m riding enduro trails or flowing through bike park lines, these shoes keep me locked in and confident."

Precision fit and pedal grip are essential when we’re charging hard, and the Fox Racing Union BOA Flat delivers on both. The dual BOA® Li2 system provides on-the-fly micro-adjustability, ensuring a locked-in feel without pressure points. Meanwhile, the Ultratac™ rubber outsole and engineered tread pattern maximize grip, keeping our feet firmly planted on flat pedals.

A molded internal stiffening plate optimizes power transfer, so every pedal stroke counts, while the reinforced TPU/ripstop upper adds durability for rugged rides. The molded toe cap shields against rock strikes, and a D3O® insert in the outsole enhances comfort and shock absorption. Built for aggressive riding, these shoes keep us in control whether we’re hitting technical descents or sending it at the bike park.

Details

• High-performance flat pedal shoe with dual BOA® adjustability
• Ultratac™ rubber outsole and engineered tread provide maximum pedal grip
• Stiff internal plate enhances power transfer while maintaining off-bike comfort
• Welded TPU/ripstop upper resists abrasion and boosts durability
• Molded toe cap offers extra protection against rock strikes
• D3O® insert in the outsole improves shock absorption for all-day comfort
• Item #FXRZ5SV

Tech Specs

Upper Material

TPU

Closure

Dual BOA® Li2

Sole

Ultratac™ rubber, D3O® insert

Cleat Compatibility

platform

Activity

enduro, trail

Manufacturer Warranty

limited 1 year