HJC FG-17 Helmet - Thrust (X-LARGE) (YELLOW/GREY/ORANGE) The race-ready helmet tested at Wind Tunnel Laboratory. Advanced Fiberglass Composite Shell: Lightweight, superior fit and comfort using advanced CAD technology. SilverCool Interior: Moisture-wicking and odor-free liners with advanced anti-bacterial fabric. Crown and cheek pads are fully removable and washable. DOT FMVSS 218 Certified