Enhanced with Dura-Matter construction, the MOD1 Pro ski helmet is designed to increase all-around durability while keeping the same low-profile design as the MOD1. This classic skate-style inspired helmet is offered in multiple sizes and ready for anywhere on the mountain. Features: Dura-Matter: Oakley's most robust construction method An injected moulded Dura-Matter shell applied over an EPS foam liner Dent and ding resistant, offering the highest level of durability Skull Matrix: MIPS® and BOA® technologies merge into a unique single system Designed to provide a more adaptive fit to help enhance comfort for an improved riding experience BOA®: Provides an exact fit with a fully adjustable design MIPS®: Remain headstrong with an industry-leading, patented brain protection system that helps protect the head from multidirectional impact Fixed vents in front of helmet allow for goggle ventilation while the fixed vents on top of the helmet help keep the riders cool Fidlock® Buckle: Seamless magnetic functionality lets you fasten your helmet with gloves on Removable liner and 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 ASTM F2040 and CE EN1077 certifications Helmet travel bag included Standard fits: Small: 51-55cm Medium: 55-59cm Large: 59-61cm XL: 61-63cm Please note: In the interest of safety, we cannot accept the return of safety and personal protective equipment.