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Fit to prepare, perform, or recover. The BOA Fit System reduces pressure points and accommodates swelling by providing micro-adjustable and uniform closure.

DonJoy Trifit Web Knee Brace

DonJoy Boa Knee brace
L6 Dial C


24-hour comfort.

Consistent from breakfast to bedtime, the BOA Fit System lets you dial in the perfect fit for customized comfort, stability, and support 24 hours a day.


Built for Life

Ultra-durable and strong, the BOA Fit System provides security in any environment so you can stay focused and confident in all that you do.

Thuasne Malleo Dynastab Ankle Brace

Thuasne Boa Ankle Brace


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.

L6 is the most widely used dial in the L-SERIES thanks to its versatile cartridge system. Designed to keep you going, the two-part design provides maximum impact protection and easy field repair – when extreme force ejects the dial, you can easily pop the cartridge back in and get back to your run.

How L6 Works


DonJoy Bionic Reel Wrist Brace Boa

Making the best gear even better.

Together we're redefining the possibilities of fit.