Features of the Oakley Mod1 Helmet A lightweight and low-profile design inspired by the classic skate-style helmet MOD1 is available in three Fits (Standard, Asian, and Youth) and delivers simplicity with premium functionality for wherever your on-mountain adventures take you BOA 360 Fit System: A fully adjustable design is engineered to help deliver an exact Fit Fixed Ventilation: Allows hot air to escape from the top of the helmet Fidlock Buckle: Seamless magnetic functionality lets you fasten your helmet with gloves on Removable Liner / Earpads: Allows for easy cleaning as it is machine washable, adaptable for various weather conditions and provides freedom to wear the goggle strap underneath the helmet Brim / Goggle Ventilation: Allows hot air to flow unobstructed from the goggle through the brim ventilation for better anti-fog Performance ASTM F2040 and CE