509 Altitude 2.0 Snow Helmet - 2021
$499.99
$399.99
20% off
509 Altitude 2.0 Snow Helmet - 2021 Item # 757646

Description
Reinvented to ride even harder, the second generation of the bestselling 509 Altitude series unleashes a whole new animal. Lighter, stronger, and even more comfortable thanks to a new hand lay-up fiberglass construction, the 509 Altitude 2.0 Helmet excels in any terrain or condition. Includes the Fidlock® magnetic strap buckle for easy one-handed operation, plus customizable features like a removable Pro-Series Breathbox to get you through a full season of extremes.
Features:
- Hand lay-up fiberglass composite construction for stronger, lighterweight, and better fit construction
- One piece eye port trim
- XS to 4X sizes available in three shells for optimal fit and minimal weight
- Upper vents with on/off shutter closure for airflow control
- Fidlock® chinstrap strap closure for easy in and out
- 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
- DOT/ECE from 1200 g
Part Numbers for 509 Altitude 2.0 Snow Helmet - 2021
Comparison Chart
![]() |
![]() |
![]() |
![]() |
![]() |
|
Model | |||||
Starting At | $280 | $500 | $660 | $570 | $770 |
Configuration | Open face | Open face | Open face | Modular | Full Face |
Shell | Polycarbonate
3 shell sizes |
Fiber glass composite
3 shell sizes |
Carbon fiber
3 shell sizes |
Poly alloy
2 shell sizes |
Carbon fiber
2 shell sizes |
Shield | Electric Shield | Electric Shield | |||
Includes | Breathbox, chin curtain | Breathbox, camera mount | Pro Series breathbox, camera mount | Breathbox, clear electric shield, smoke sun shield, chin curtain | Breathbox, clear electric shield, chin curtain |
Weight | 2.87 lbs | 2.65 lbs | 2.35 lbs | 4.19 lbs | |
Fidlock | ![]() |
![]() |
![]() |
![]() |
|
Neck Brace Ready | ![]() |
![]() |
![]() |
||
Ventilation | Good | Best | Best | Better | Better |
Certification | DOT/ECE - 2206 | DOT/ECE | DOT/ECE - 2206 | DOT/ECE | DOT/ECE |
Videos
Videos
Reviews
Rated 5 out of
5
by
Anonymous from
Great product as per 509
Great fast business, never had an issue with any products or orders.
Date published: 2024-01-02
Rated 5 out of
5
by
Zoerbie from
Fidlock is awesome!
New helmet fits perfectly and absolutely LOVE the Fidlock system. On/off with gloves on is a breeze.
Date published: 2022-04-20