Arai Quantum-X Ray Full Face Motorcycle Helmet Size:M The unique design dynamically changes

The unique design dynamically changes the tension in the cable throughout the wrist’s full range of motion preventing excessive bending (lateral and medial) and hyperextension

and Vibram Rubber + EVA sole deliver unmatched comfort and performance

interior customization kit (top crown pad

ensuring it withstands the demands of the open road for years to come

Zippered vents at the shoulders

Arai Quantum-X Ray Full Face Motorcycle Helmet Size:M The unique design dynamically changesPurpose 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. Features Round oval shape, achieved by