509 Altitude 2.0 Snowmobile Helmet - Mintnight

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.

KEY FEATURES

• Hand lay-up fiberglass composite construction for stronger, lighterweight, and better fit construction
• DOT/ECE certified in USA
• 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

SPECS

• Starting Weight: DOT/ECE 1200 grams

Safety Update: We've resolved all concerns related to the 2025 509 Helmet Recall by removing impacted sizes and verifying Fidlock routing on affected models.

Product availability varies between locations, and some products are only available online. Please contact your nearest Martin Motor Sports here for availability.

American customers: We are unable to ship current 509 & Klim products to the US at this time, but we are able to ship non-current 509 & Klim product to you. See the selection here.