From endless rail gardens to big rocky cirques, the POC Receptor Bug Adjustable Helmet fits a wide variety of head sizes and protects your head no matter what type of terrain you choose to ski or ride. Comfortably secure this helmet"s double shell technology between your skull and inevitable and unsuspected impacts, because you always choose to go big instead of going home. With its size adjustment system, you can properly secure the Receptor and ensure the most protection possible despite your head"s unique shape. Product FeaturesMaterial: [outer shell] polycarbonate, ABS; [inner shell] EPS foam, polycarbonate; [liner] SEPPAdjustable Vents: yesNumber of Vents: 8 topFit Adjustment: adjustable linerCertifications: Weight: Recommended Use: protecting yo nogginManufacturer Warranty: 1 year