Advanced Fiberglass Composite Weave Shell: Lightweight, superior fit and comfort using advanced CAD technology . Meets or exceeds SNELL M2005 & DOT standards . “ACS” Advanced Channeling Ventilation System: Full front to back airflow flushes heat and humidity up and out . SilverCool™ Interior: Moisture-wicking and odor-free interior with advanced silver anti-bacterial fabric . Crown and cheek pads are removable and washable . Complete with UV-treated Flip-up Faceshield: Opens easily . Optional shields: RST mirrored, smoke and dark smoke . Sleek, Aerodynamic Visor: Replaces faceshield when needed . Available in sizes XS thru 2XL