The race-ready helmet tested at Wind Tunnel Laboratory Advanced Fiberglass Composite Shell: Lightweight, superior fit and comfort using advanced CAD technology All sizes of cheek pads are interchangeable in all helmet sizes SilverCool Interior: Moisture-wicking and odor-free liners. Crown and cheek pads are fully removable and washable Comes equipped with a clear Pinlock 100% Maxvision Shield Superior Fog Resistant Clear Pinlock Max Vision Shield (HJ-20M): New 3D design provides anti-scratch coating and is prepared for the ultimate anti-fog Pinlock insert (sold separetely) Innovative Center shield locking mechanism for a balanced, ultra-secure seal RapidFire II Shield Replacement System: Quick, secure, tool-less removal and installation ''ACS'' Advanced Channeling Ventilation System: Full front to back airflow flushes heat and humidity up and out D.O.T. standards Exceptional Lightweight Helmet: the FG-17 has 3 distinct shell sizes 1st Shell XS thru SM 1520g (+/- 50g) 3.35lbs 2nd Shell MD thru LG 1580g (+/- 50g) 3.48lbs 3rd Shell XL thru 3XL 1600g (+/- 50g) 3.52lbs 2013 Model. DOT approved. Meets the FMVSS 218 Standard.