Mips brain protection system;the boa system lets riders easily secure & adjust helmet fit with one hande Blendr mount system easily integrates gopro camera & bontrager lights accessories In-mold composite skeleton increases helmet integrity for larger vent variations Agion antimicrobial pads wick moisture & completely eliminate odors naturally Lockdown dividers make helmet strap management clean & are easy to adjust Internal, recessed channels move airflow over your head to stay cool & dry Crash replacement guarantee provides free helmet replacement if involved in a crash within the first year of ownership