HJC CL-16 Shock Graphic Snow Helmet Yellow Dual Lens Complete with a dual lens snow shield and breath guard. Advanced Polycarbonate Composite Shell: Lightweight, superior fit and comfort using advanced CAD technology SpeedCool Removable, moisture-wicking and odor-free with anti-bacterial fabric. SNELL/DOT Approved SIZES: XS-XXXL (XXXL DOT Only) "ACS" Advanced Channeling Ventilation System: Full front to back airflow flushes heat and humidity up and out.