The motocross favorite MX-9 helmet has been upgraded with MIPS technology for greater protection from angled and rotational impact at speed. When the moto gets intense, Bell's Velocity-Flow ventilation system moves tons of cool air in, and warm air out to keep you comfortable. The Bell MX 9 Helmet packs a moisture-wicking liner that is designed to channel air where you need it and is fully removable and washable.