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Reinvented to ride even harder, the second generation of the bestselling 509 Altitude series unleashes a whole new animal. Leading the charge is the 509 Altitude 2.0 Carbon Fiber 3K Hi-Flow Helmet with a new hand lay-up 3K carbon composite construction that’s lighter, stronger, and straight-up sleeker than anything before it. For those who like to get aggressive, it includes the Fidlock® magnetic strap buckle for easy one-handed operation, a built-in universal camera mount, plus airflow control venting.