Engineered for MX, Enduro, and off-road riding, the SM3 Helmet integrates advanced technologies and innovations designed to enhance ease of use, comfort, and impact protection.
Features:
- Advanced Shell Construction: This 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 lightweight
- Ventilation: Maximized ventilation and high levels of heat transfer exchange thanks to 10 inlets and seven exhaust ports
- Rotational Acceleration Force Protection: Alpinestars patented low-friction coating is applied to the inner part of the main EPS liner to reduce the rotational acceleration forces that can result from certain oblique impacts
- Visor Release: Patented visor release system ensures the visor is released with the correct pre-determined amount of force
- DOT certification and ECE 2206 homologation for use worldwide
- Weight 1460g (M)
With tape level, measure the widest point of your head, approximately 1 inch above your eyebrows.
| Helmet Size | CM | Inches |
|---|
| XS |
53 - 54 |
20.8 - 21.2 |
| S |
55 - 56 |
21.6 - 22 |
| M |
57 - 58 |
22.4 - 22.8 |
| L |
59 - 60 |
23.2 - 23.6 |
| XL |
61 - 62 |
24 - 24.4 |
| 2XL |
63 - 64 |
24.8 - 25.2 |