The in-mould composite skeleton increases helmet integrity and larger vent variations.The Headmaster II fit system allows easy one-handed height and circumference adjustments.The flexible head-conforming FormFit brow band improves comfort and ventilation.AgION antimicrobial pads wick moisture away and completely eliminate odours naturally.LockDown dividers make helmet strap management look clean, and are simple to adjust.Internal, recessed channels manage airflow through the helmet and over the head.The design allows for compatibility and easy installation of the Bontrager NeoVisor.The Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership.