The Icon Mainframe helmet was designed with rider’s safety, fit and function in mind. Shell is constructed of Dyeema/fiberglass composite and lined with a dual-density styrene liner for incredible strength without undue weight. Features a venturi super-vent cooling system for the ultimate in airflow. A three-position forehead switch acts as an additional ram-air vent. Removable/washable cheek pads, removable anti-fog breath deflector, and the industry’s easiest no-tool quick-change shield. Internal on/off chin exhaust switch offers control of escaping air. Side exhaust port works in conjunction with internal chin exhaust to release old air. Positive-lock chin venting system helps prevent fogging. Removable cheek pads with formed ear pockets can accept communication speakers. Optically correct polycarbonate, 7-position shield.