Bell Moto-9 Flex Off Road Motorcycle Helmet (PRO CIRCUIT Black/Green, X-Large) (Non-Current Graphic) Flex Impact Liner - Progressive Layering: A first-of-its kind, three-layer impact liner designed to manage energy from three potential impact scenarios: low, mid and high-speed. Lightweight Carbon Composite shell construction Magnafusion Magnetic Cheek Pads-Allows for easy removal of the pads for washing and enables emergency responders to easily remove the cheek pads fist before removing the helmet following an impact. X-Static XT2 Silver Liner-A leader in antimicrobial fabric technology, X-Static material is clinically-proven to provide bacteria and odor protection throughout the life of the liner. Velocity Flow Ventilation-Using precise port placement and internal channeling, Bell has created a natural engine that circulates air from front ports, over the riders head, exiting out rear ports.