Fiberglass Composite shell for a lightweight designMaximizes airflow with 25 ventilation portsAntimicrobial, washable and replaceable comfort liner, cheek pads and chin strap coverEmergency release cheek pads for quick, safe removalIntegrated compartment�accepts inflatable emergency release systemsCompatible with most popular neck brace systemsSteel D-ring buckle provides a secure fit while limiting weightAdjustable visor with machined, lightweight aluminum screws