Altitude 2.0 Carbon Fiber 3K Hi-Flow Helmet

Reinvented to ride even harder, the second generation of the bestselling 509 Altitude series unleashes a whole new animal. For those who run at redline, the new 509 Altitude 2.0 Carbon Fiber 3K Hi-Flow Helmet maximizes airflow with open upper and rear vents plus a 40% larger chinbar intake. Everything else is what you’d expect from one of the world’s bestsellers, including a new hand lay-up carbon composite construction that makes this helmet lighter, stronger, and even more comfortable.

509 Helmet Features Key

Hand lay-up carbon fiber composite construction
XS to 4X sizes available in three shells for optimal fit and minimal weight
Upper vents for airflow control
Go-Pro® mounting capability, improved design
Fidlock® chinstrap strap closure for easy in and out
Perfect fit between helmet eyeport and 509 goggles
Pro-Series Breathbox for complete protection, removable for optimal air flow
509 helmet bag included

Specs
Weight: ECE 1050 grams