509 Altitude 2.0 Carbon Fiber Helmet Size:4XL Mesh intercom: up to 8

Mesh intercom: up to 8 hours

An elastic waistband keeps it in place while a near-360 zipper allows you to efficiently drop trou when nature calls

Dual density EPS

Shell: 98% Cotton

Unit Dimensions: Height 48mm X Length 78mm x Depth 20mm

509 Altitude 2.0 Carbon Fiber Helmet Size:4XL Mesh intercom: up to 8Reinvented 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 Helmet with a new hand lay up 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