• 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® Brain Protection System is a helmet integrated, low friction layer designed to reduce rotational motion transferred to the brain 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 (59-61cm) / Extra Large (61-63cm) • ASTM F2040 and CE