The 509 Altitude 2.0 Helmet is built for riders who demand uncompromising safety, comfort, and visibility in harsh winter terrain. Engineered for aggressive snowmobile / snow sled / snow machine riding, this updated Altitude design features advanced materials, improved aerodynamics, and premium ventilation—making it a top-tier choice for backcountry winter motorsports.
Advanced Safety Certification
The reinforced lightweight shell delivers exceptional impact protection and meets DOT and/or ECE standards. Riders get the peace of mind that their helmet is built for high-speed, high-demand winter environments.
Winter-Ready Ventilation System
Strategically designed intake and exhaust vents provide balanced airflow to reduce fogging, manage heat, and maintain comfort—critical during deep-snow boondocking or high-energy mountain ascents.
High-Visibility Highlighter Colorway
This ultra-bright finish increases rider visibility in flat light, storm conditions, and treed zones—an essential safety advantage in winter terrain.
Premium Comfort & Fit
The removable, moisture-wicking liner keeps your helmet fresh ride after ride. An optimized visor design helps reduce lift while shielding your eyes from sun glare and blowing snow.
Designed for 509 Goggle Integration
Contoured to pair perfectly with 509 goggles, especially the Aviator 2.0, creating a tight seal that blocks cold air, snow dust, and moisture.
Snowmobile riders choose the Altitude 2.0 for its combination of safety certification, cold-weather function, and signature 509 aggressive styling. It offers dependable impact protection, excellent airflow, and crystal-clear goggle compatibility—making it a trusted helmet for mountain riding, trail riding, and backcountry snowmachine adventures.
Certification: DOT and/or ECE (model dependent)
Shell: Lightweight advanced composite construction
Venting: Multi-port system with closable vents
Liner: Removable, moisture-wicking, washable interior
Compatibility: 509 goggles (optimal with Aviator 2.0)
Use: Snowmobile / snowmachine / winter motorsports
