MIPS Brain Protection System. The Boa� system lets riders easily secure and adjust helmet fit with one hand. Blendr mount system easily integrates GoPro camera and Bontrager light accessories only. Drop-in coverage on back of helmet offers extended protection. The in-mould composite skeleton increases helmet integrity for larger vent variations. FlatLock dividers make helmet strap management simple through the fixed-position fit. Internal, recessed channels move airflow over your head to stay cool and dry. The Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership.