- Hand lay-up fiberglass composite construction for stronger, lighter weight, and better fit construction
- Upper vents with on/off shutter closure for airflow control. XS to 4X sizes available in three shells for optimal fit and minimal weight
- Fidlock chinstrap strap closure for easy in and out. Go-Pro mounting capability and improved design
- Perfect fit between helmet eyeport and 509 Goggles. Pro-Series Breathbox for complete protection, removable for optimal air flow
- Weight: ECE helmet as low as 1070 grams, and DOT, FMVSS 218/ECE 1150 grams
Genuine Polaris 509 Altitude 2.0 Helmet