The USI BOA Retention Harness with Rapid Adjustment Dial delivers next-level helmet stability, comfort, and on-the-go adjustability. This stand-alone chinstrap system features the innovative BOA® Closure System, giving operators the ability to fine-tune their fit instantly—tightening or loosening with a simple one-handed adjustment. Built for performance, the BOA system stabilizes the helmet in dynamic conditions, from running to prone positions, while enhancing comfort and reducing the need for counterweights when carrying head-borne accessories. Lightweight yet durable, it ensures secure fit and reliable performance in the harshest environments. Compatible with multiple helmet styles across manufacturers, the harness uses the standard 4-point ACH bolt pattern, making integration fast and simple. A quick-release system also allows operators to instantly loosen the harness around the crown of the head when needed. Key Features: BOA® Closure System with Rapid two-way Adjustment Dial for on-the-go fit One-handed adjustment for quick tightening or loosening Stabilizes the helmet during running and prone positions Increases comfort while supporting head-borne accessories Lightweight, durable, and built for operational use Quick-release system for instant crown loosening Compatible with multiple helmet styles via 4-point ACH bolt pattern Experience unmatched fit, stability, and comfort with the USI BOA Retention Harness—engineered to perform under the demands of the modern officer.