The next generation in lighter, stronger, sleeker protection?the reinvented 509 Altitude 2.0 Carbon Fiber 3K Hi-Flow Helmet accelerates bestselling fit and comfort.
Hand lay-up carbon fiber composite construction
XS to 4X sizes available in three shells for optimal fit and minimal weight
Upper vents for optimal airflow
Go-Pro® mounting capability, improved design
Fidlock® chinstrap strap closure for easy in and out
