7IDP M1 HELMETLIGHTWEIGHT FULL FACE PROTECTIONAggressive riding means you should have aggressive protection. If you are shreddin' the trails and spending the day at the bike park, you should have a full-face helmet for maximum protection. The 7IDP M1 Helmet provides lightweight full-face protection. It features 17 vents that provide cool air intake and heat exhaust. The large eye port provides a greater field of vision and has improved goggle fit.Features17 vents that help keep riders cool in the heatLightweight polycarbonate shell that provides full-face protectionLarge eye port for a greater field of visionSPECIFICATIONSCore MaterialEPSClosure system-Safety CertificationsCE, CPSC, ASIntended UseDownhill, Bike ParkWeight-SizingSizeExtra SmallSmallMediumLargeExtra LargeHead Circumference (in)20.75 - 21.25"21.5 - 22"22.5 - 22.75"23.5 - 23.75"24 - 24.25"Head Circumference (cm)53 - 54cm55 - 56cm57 - 58cm59 - 60cm61 - 62cm | 7IDP M1 Helmet Men's Size Extra Small in Red/Black