The BOA Advantage.
Each micro-adjustable system uses unique dial, lace and guide configurations to deliver unprecedented fit and performance. While each component is crucial in optimizing the fit experience, the foundation of the BOA Fit System is the BOA dial.
M3 uses a 1:1 gear ratio and a larger dial to increase dexterity and grip for gloved hands. Quick lace take-up and powerful closure allows for micro-adjustment in the most extreme environments and the harshest weather.
How M3 works