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.
Designed for easy operation with gloved hands, the M4 dial allows for micro-adjustment with a stable and controlled grip in wet and variable conditions. The two-part design provides maximum impact protection while offering easy field repair so nothing is stopping you – just pop the cartridge back in and you’re back to work.
How M4 Works