HJC CS-R1 Solid Helmet - Large/Black The CS-R1 Helmet from HJC features advanced polycarbonate composite shell construction superior fit and comfort using advanced CAD technology RapidFire Shield Replacement System quick, secure, tool-less removal and installation Optically superior faceshield 95% UV protection Advanced Ventilation System adjustable forehead and chin vents, and two rear exhaust vents Plush, Nylex interior removable and washable