Alpinestars Supertech M5 Sail Helmet Options Test A classic design with modern

A classic design with modern construction and modern performance

Inserts utilize automotive grade LEDs to produce an even brighter light output with wider veiwing angle

Designed to clear frame tubes on most recent water cooled models

ethnically produced down

Designed to fit OEM perch

Alpinestars Supertech M5 Sail Helmet Options Test A classic design with modernThe SM5 helmet has been designed to provide MX riders with a helmet that is safe and purposefully designed to deliver optimal protection and comfort. The lightweight SM5 helmet features a thermo injected shell incorporating a special polymer blend enhanced by varying degrees of thickness that is engineered to deliver the optimal combination of impact protection and light weight, while the five density EPS liner ensures the correct density in the