MIPS Brain Protection System. Boa closure system lets riders easily secure and adjust helmet fit with one hand. Front Center Channel's distinct vent shape draws in significantly more air. Internal, recessed channels move airflow over your head to keep you cool and dry. In-mold composite skeleton increases helmet integrity and provides larger vent variations. AgION anti-microbial pads wick moisture and naturally eliminate odors. Easily-adjustable LockDown dividers provide clean helmet strap management. Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership.