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. DOT approved. Meets the FMVSS 218 Standard.