Advanced Polycarbonate Shell: Lightweight, Superior Fit And Comfort Using CAD Technology. Anti-Fog Lens Prepared. Aerodynamic Shell with Large Eye Port for Greater Visibility. ACS Advanced Channelling Ventilation System: Full Front to Back Airflow Flushes Heat and Humidity Up and Out. Micro Buckle: Quick-Release and Adjustable. RapidfireT Shield Replacement System: Simple and Secure Shield Ratchet System Provides Ultraquick, Tool-Less Removal and Installation for Efficient Operation. Removable, Moisture-Wicking Interior with Advanced Anti-Bacterial Fabric. Super Cool. Anti UV. Quick Release Visor Mechanism. Glasses Groove. 2 Size Shell. HJ-20M Shield. HJ-V7 Integrated Sun Shield.