FOX Union BOA Flat Cycling Shoes

Fox Union BOA® Flat MTB Shoes

A new generation of MTB shoes that elevates your ride to the next level. Fox Union BOA® flat shoes are designed for maximum control, grip, and a precise fit — for trail, all-mountain, and everything in between.

With the dual BOA® Li2 system, they allow micro-adjustments while riding, while the new upper construction (TPU + ripstop) brings greater durability, breathability, and a better on-foot feel.

A fit you can dial in to the millimeter

The Dual BOA® Li2 system allows quick and precise adjustments — even while riding. The result is a secure foothold and better power transfer to the pedals.

Grip that keeps you on the pedals

The Ultratac™ rubber outsole with an optimized pattern delivers top-tier grip on flat pedals and exceptional durability — for total control on every trail.

Control + comfort = performance

The low-profile EVA midsole enhances pedal feel, while the internal reinforcement plate optimizes power transfer without compromising walking comfort.

Protection you actually need

The reinforced toe (toe cap) protects against rock strikes, while the D3O® insert in the sole absorbs vibrations and increases comfort on longer rides.

Features:

• Dual BOA® Li2 system for micro-adjustments and a perfect fit.
• Ultratac™ outsole for maximum grip on flat pedals.
• D3O® insert for shock and vibration damping.
• TPU + ripstop upper for durability and breathability.
• Low-profile EVA midsole for better pedal feel.
• Reinforced toe for impact protection.
• Internal reinforcement plate for better power transfer.
• Selectable arch support (high / low arch).

Specifications:

• Type: MTB shoes (flat pedal).
• Use: trail / all-mountain / enduro.
• Closure system: Dual BOA® Li2.

Sizing and fit:

• This model runs large — we recommend choosing one size down.
• Standard fit (true to size with correct selection).
• Same fit as Fox Union models (BOA®, Flat, Canvas).