HJC CL-17 Metallic Wine Full Face Motorcycle Helmet - Large Advanced Polycarbonate Composite Shell: Lightweight, superior fit and comfort using advanced CAD technology. Anti-Scratch Pinlock ready Faceshield (HJ-09): New 3D design provides 95% U.V. protection. Side shield lock mechanism for a ultra-secure seal. For ultimate Anti-Fog system add a optional Pinlock insert (sold seperately) RapidFire Shield Replacement System: Simple and secure shield ratchet system provides ultra-quick, tool-less removal and installation for efficient operation. 2-Stage shield closure system with one-touch center open/close shield locking system makes for an extremely tight and secure seal. &rsquo;&rsquo;ACS&rsquo;&rsquo; Advanced Channeling Ventilation System: Full front to back airflow flushes heat and humidity up and out. SuperCool Moisture-Wicking Interior: Fully removable cheek pads and liner. Anti-Bacterial Fabric. All sizes of cheek pads are interchangable in all helmet sizes