HJC Schade IS-2 Half (1/2) Shell Motorcycle Helmet - MC-51 / X-Large Advanced Polycarbonate Composite Shell: Lightweight, superior fit and comfort using advanced CAD technology Integrated SunShield: Smoke-tinted shield deploys easily when needed SilverCool Interior: Moisture-wicking and odor-free interior with advanced silver anti-bacterial fabric. Comfortable, removable and washable Retractable