Enhanced with Dura-Matter construction, MOD1 PRO SL is designed to increase all-around durability while keeping the same lightweight, low-profile design as MOD1. This classic skate-style inspired helmet is offered in multiple fits and caters to skiers with a removable chin guard.Oakley Mod 1 Pro SL Features: CHIN GUARD: Designed to provide an extra layer of safety to help protect the racer’s face. DURA-MATTER: Our most robust construction method, using an injected molded Dura-Matter shell applied over an EPS foam liner. Dura-Matter is dent and ding resistant, offering the highest level of durability. SKULL MATRIX: MIPS and BOA technologies merge into a unique single system. Skull Matrix is designed to provide a more adaptive fit to help enhance comfort for an improved riding experience. FIXED VENTILATION: 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/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