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Fox Union BOA

The BOA® Fit System delivers micro-adjustable precision fit, engineered to perform in the toughest conditions on the Fox Union BOA mountain biking shoe with Dual Dial Li2.

Dial And Lace Specs

Li2

Lightweight and low-profile, Li2 enables multidirectional adjustments for tightening and loosening at every turn, climb, and sprint. Built to last, the dial platform is engineered with unprecedented durability against impact, abrasion, dirt, and debris.

  • Push in to engage
  • Turn to tighten
  • Turn to loosen
  • Pull up for fast release

SS2

Made of stainless steel to withstand harsh wear and tear, SS2 is our strongest, most durable lace designed for high-power applications.

How the Boa Fit System Works

Multidirectional Precision Fit + Fast Release

Explore Li2