Advanced Polycarbonate Composite Shell. Lightweight, superior fit and comfort using advanced CAD technology. Anti-Scratch Pinlock ready Face shield (HJ-09). New 3D design provides 95 percent U.V. protection. Side shield lock mechanism for a ultra-secure seal. For ultimate Anti-Fog system add a optional Pinlock insert (sold separately). 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. ACS 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 interchangeable in all helmet sizes. Meets or Exceeds SNELL & D.O.T. Standards Note Sizes XXX-Large to 5X-Large D.O.T. approved only.