HJC 640-615 FG-JET Open-Face Motorcycle Helmet (Matte Black, X-Large) Advanced Fiberglass Composite Shell; Lightweight, superior fit and comfort using advanced CAD technology For a perfect fit, FG-Jet comes in 3 different shells: 1st shell for XS-S sizing, 2nd for M-L sizing and 3rd for XL-2XL sizing SilverCool Interior, Moisture-wicking and odor-free liners with advanced anti-bacterial fabric U.V. Treated 3D Anti-Scratch Clear Faceshield QuickSlide Tool-less Shield Replacement System