A lightweight and low-profile design inspired by the classic skate-style helmet. The 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. MIPS® Integration (optional): The MIPS® Protection System is a helmet integrated, low friction layer designed to reduce rotational motion transferred to the during an impact. 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. Adult: Small (51-55cm) / Medium (55-59cm) / Large (59-63cm) / Extra Large (61-65cm). Certifications: ASTM F2040 and CE.