The Alpinestars S-M5 Solid is the result of years of Astars helmet development and made its debut on the Supercross start line. A thermo-injected polymer shell in three anatomical sizes keeps the fit precise, while the multi-density, multi-zone EPS and low-friction liner surface help manage both straight and rotational impacts. It meets the latest ECE 22.06 standard, with a DOT-certified option also offered.
- Three shell sizes for a tailored fit
- Multi-zone EPS with low-friction liner technology
- ECE 22.06 certified, around 1,350 g in size M
- Multiple air inlets and exhaust ports for cooling





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