Advanced Polycarbonate Composite Shell. Includes adjustable polycarbonate chin bar. Single-Button Chin Bar/Face Shield Release. Lightweight, superior fit and comfort using advanced CAD technology. Opens with one hand, even with gloves on. ACS Advanced Channeling Ventilation System. Full front-to-back airflow flushes heat and humidity up and out. SuperCool Moisture-Wicking Interior. Anti-bacterial, removable, and washable. Glasses groove accommodates eyeglass wearers. QuickSlide Shield Replacement System. Quick, secure, tool-free removal and installation of HJ-17 shield. Optically Superior HJ-17 Face Shield. 95% UV protection. Double D-Ring Chin Strap.