Sector 9 Logic II CPSC Certified Helmet, Green, Small/Medium Super Light-weight ABS Outer Shell Inner EPS Liner for Super Shock Absorption CPSC Certified (Consumer Product Safety Commission) Outer Foam Layer Molds to Your Head Additional Pads for Sizing Adjustments Soft moisture-wicking Fabric Liner Adjustable Nylon Buckled Straps Stainless Steel Rivets