MIPS Brain Protection System;The Boa System lets you easily secure and adjust helmet fit with one hand;Internal, recessed channels move airflow over your head to keep you cool and dry;37.5 fit pads pull moisture away from your skin to help maintain ideal comfort;Sunglass port allows easy access to securely store glasses when not in use;Viper Red, White and Visibility Yellow colourways come with Team Trek-Segafredo sticker kit;Includes removable NeoVisor for all the benefits of a cycling cap without extra bulk;Crash Replacement Guarantee provides free helmet replacement if involved in a crash within the first year of ownership;