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.
The H3+ Coiler dial uses coiler technology to increase the speed of entry and quickly take up loose lace. The 4:1 gear ratio and cushioned grip make it easier to get the fit you want with four effortless turns instead of one.
How H3+ Coiler Works