Fox Racing Union BOA Mountain Bike Shoe

Dual BOA® precision and Ultratac™ grip make the Union BOA a high-performance shoe for aggressive riding

What Our Gearhead® Experts Are Saying:

"The Union BOA shoes give me a locked-in fit that doesn’t budge, thanks to the dual BOA® Li2 system. The molded toe cap protects against rock strikes, and the stiff midsole optimizes power transfer while still feeling comfortable off the bike. The Ultratac™ rubber outsole grips pedals like a dream, and the 2-bolt cleat compatibility makes them a versatile choice for aggressive trail and enduro riding."

Precision, power, and protection—three things we demand from our riding shoes, and the Fox Racing Union BOA delivers. With a dual BOA® Li2 closure, we can micro-adjust our fit on the fly, ensuring a secure, responsive feel every ride. The molded internal stiffening plate enhances power transfer to the pedals without sacrificing comfort when we´re off the bike.

Built to handle the demands of rugged terrain, the welded TPU/ripstop upper resists abrasion, while the molded toe cap shields against unexpected rock strikes. The Ultratac™ rubber outsole, now enhanced with a D3O® insert, provides outstanding grip and durability, keeping us locked into our pedals through technical descents and rowdy lines. Whether we’re charging enduro stages or exploring new trail systems, these shoes offer the performance we need to ride harder, longer, and with total confidence.

Details

• High-performance mountain bike shoe with BOA® Li2 precision fit
• Dual BOA® system allows micro-adjustments for a secure feel
• Stiff internal plate optimizes power transfer while maintaining off-bike comfort
• Ultratac™ rubber outsole with D3O® insert delivers unmatched grip and durability
• Welded TPU/ripstop upper provides abrasion resistance and a lightweight feel
• Molded toe cap offers extra protection against rock strikes
• 2-bolt cleat compatibility works with all major pedal systems
• Item #FXRZ5SU

Tech Specs

Upper Material

TPU

Closure

Dual BOA® Li2

Sole

Ultratac™ rubber, D3O® insert

Cleat Compatibility

2-bolt

Activity

enduro, trail

Manufacturer Warranty

limited 1 year