Reinvented to ride even harder, the second generation of the bestselling 509 Altitude series unleashes a whole new animal. At the top of the podium is the 509 Altitude 2.0 Carbon Fiber R-Series Helmet featuring a lighter and stronger hand lay-up carbon composite construction. It leads with the highest levels of safety and performance with DOT/ECE dual certification, it includes the secure fit of a Fidlock® magnetic chin strap.