Alpinestars 2026 SM-3 Jettson MX Helmet - Grey/Purple/Black

Please Note: Helmets are non-returnable and non-refundable, both for online and in-store purchases. This policy is in place for safety and legal reasons—once a helmet has been sold, we cannot accept it back under any circumstances.

It is essential to select the correct size to ensure a proper fit and maximum protection while riding. Please take care in choosing the right size.

If you have any questions or need guidance, feel free to contact us or visit our store. Our knowledgeable staff will gladly help you find the helmet that fits perfectly and keeps you safe on the road.

The S-M3 helmet is designed specifically for MX, Enduro, and Off-road riding, integrating advanced technologies to enhance comfort, usability, and impact protection. It meets both DOT and ECE 2206 safety standards for global use. The patented visor release system minimizes neck strain by releasing with a controlled force during impacts. Ventilation is optimized through 10 inlets and 7 exhaust ports for effective heat dissipation. A unique low-friction coating on the EPS liner reduces rotational forces from angled impacts, mimicking the brain’s natural defense. The lightweight thermo-injected shell combines varied polymer thicknesses for superior protection without added weight.