Alpinestars Supertech M5 Solar MX Helmet Size:L 4-Way stretch poly chassis

4-Way stretch poly chassis

but using the system also means natural and intuitive operation of this extremely feature-rich device

Anatomically profiled for a fully optimized female fit for maximum comfort

Built with weatherproof 5TECH fabric

dual-injection frame construction maximizes strength and durability

Alpinestars Supertech M5 Solar MX Helmet Size:L 4-Way stretch poly chassisThe all new SM5 helmet is the result of more than five years of intensive study, development and testing. We scrutinized every possible aspect to engineer a helmet that is safe and thoughtfully designed to deliver optimal protection and comfort. This lightweight 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