509 F01009400-120-104 - Hand lay-up fiberglass composite construction for stronger, lighterweight, and better fit construction ; FMVSS 218 certified in USA. ECE available in Canada and Europe One piece eye port trim ; XS to 4X sizes available in three shells for optimal fit and minimal weight and Upper vents with on/off shutter closure for airflow control Fidlock chinstrap strap closure for easy in and out with Go-Pro mounting capability, improved design Perfect fit between helmet eyeport and 509 goggles Pro-Series Breathbox for complete protection, removeable for great air flow Reinvented to ride even harder, the second generation of the bestselling 509 Altitude.
