Your cart is empty
Redefine your ride with the 509 Altitude 2.0 Helmet in the exclusive “Highlighter” limited-edition colorway—designed for high-speed trail runs, mountain missions and full-throttle sled days. Lighter, stronger and more versatile than the previous generation, this helmet delivers pro-grade performance every time.
Built with a hand-lay-up fiberglass composite shell for optimal strength and weight, the Altitude 2.0 comes equipped with a Fidlock® magnetic chin strap for fast one-handed operation, a removable breath box for use in extreme cold, and a one-piece eye port that seals flawlessly with compatible 509 goggles.
The Highlighter edition retains the core tech of the Altitude series while offering high-visibility graphics that demand attention on and off the mountain. Whether you're launching pillows, threading trees or cruising tunnel roads, you'll ride safe and stand out.
All warranty claims must be made directly through the manufacturer (509). View warranty details
| Base Activity (Sport) | Snowmobiling |
| Base Activity (Sport) | Snowbiking |
| Catalog | Snow |
| Collection | Helmets & Goggles |
| Collection | Highlighter Collection |
| Condition | New |
| Gender | Unisex |
| Gender | Men's |
| Gender | Women's |
| Overview | Ride with confidence in the 509 Altitude 2.0 Helmet, featuring lightweight fiberglass construction, advanced airflow, and the bold Highlighter limited-edition colorway. |
| Product Family | Helmets |
| Release Year | Winter 2026 |
| Riding Style / Environment | Trail Riding |
| Riding Style / Environment | Backcountry Riding |
| Riding Style / Environment | Racing |
| PromoBar | $25 OFF When Bundled with Any New 509 Helmet! |
| Base Activity (Sport) | ATV |
| Base Activity (Sport) | UTV (Side-By-Side) |
| Riding Style / Environment | Crossover |