The Altitude helmet is constructed from an innovative new thermoplastic poly alloy outer shell material. This all new material allows for one of the lightest helmets in its class, with a starting weight of just 1260 grams. The Altitude helmet comes in 9 total sizes (Youth SM-LG, Adult XS-2XL) from 3 individual outer shell molds. This results in a smaller overall shell profile, a dialed in fit, and the lightest weight possible.
Safety is our #1 focus and concern at 509. With the development of the Altitude helmet we put an emphasis on safety & quality. First is the dual density internal EPS foam. This provides two innovative levels of crash absorbing protection. Next is our industry leading thermoplastic poly alloy outer shell that provides a high level of puncture prevention. 
The Altitude helmet is covered by not one, but two world leading safety standards: DOT & ECE 2205 Certification. Our competitors only offer one level of safety certification. Goggle performance is directly affected by the fit of the goggles in your helmet. Mixing a different brand goggle and helmet will only result in decreased goggle performance. The 509 goggle and Altitude helmet combo was designed to fit and function perfectly together. Both products were specifically engineered for optimal performance from an industry leading combo fit. The Altitude helmet was engineered from the ground up to provide an improved goggle fit over our previous Evolution shell. Experience the first and only true helmet & goggle combo in the snowmobile industry. Click here to see more 509 products…
