Waterproof zipper

A Double layer palm construction means added abrasion resistance and durability

*Biodegradable (*Only contents are biodegradable)

Designed for the most demanding riders

US 8/UK 10/AU 12 (Expands to lower hip 30 inches)

Arai Quantum-X Helmet - White new Waterproof zipperPurpose built for the street. A new benchmark in comfort, quiet, stability and ventilation. Arai applied the same tireless 24 7 focus devoted to our race helmets to designing it, refining and adapting proven concepts to a new purpose. On the rounder end of the head shape spectrum, the Quantum series has always been the "go to" helmet of choice. The new Quantum X brings that shape back in a feature rich package.