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Ships within 48 hours · Estimated delivery Jul 3 - Jul 8
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Description
alpinestars moto gear Alpinestars Supertech SM3 HelmetEngineered 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. Key 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. The SM3 medium
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.
Key Features
- 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. This layer essentially acts as a slip plane to mimic the brain’s own low-friction cerebrospinal fluid, which is the body’s natural defense against oblique impacts.
- Visor Release: Patented visor release system ensures the visor is released with the correct pre-determined amount of force, effectively reducing the forces on the rider’s neck during an impact.
Construction
- 5 EPS inner parts with 4 densities to effectively manage volume and impact perfromance.
- Hydration tube channels are integrated into the helmet’s cheek pads for convenience and performance.
- Comfort liner is constructed using recycled materials for a lower carbon footprint.
- The fit can be tailored to the rider’s head thanks to the helmet’s crown and cheek pads, which are available as genuine spare parts in different thicknesses.
Protection
- The inner and outer surfaces are engineered to minimize the effects of oblique impacts.
- Equipped with an Emergency Release System and removable cheek pads to permit the safe and easy removal of the cheek pads while the helmet is still on, while the 3D contoured foam ensures rider comfort.
- Soft textile chin strap is 25mm for optimal safety and rider comfort.
- Stainless steel D-rings ensure a tight and secure fit.
- The SM3 helmet conforms to both DOT certification and ECE 2206 homologation for use worldwide.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 1608 reviews
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Product Reviews
★★★★★ 5
Affordable
Good price and didn’t bother my sensitive skin.
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Reviewed in the United States on February 28, 2026
★★★★★ 5
Perfect Sunscreen for Acne-Prone Skin! ☀️✨
Size: 2.5 Fl Oz (Pack of 1)
I absolutely love this sunscreen! Eucerin has honestly become one of my favorite skincare brands because this is one of the only sunscreens that works well with my acne-prone skin. It doesn’t feel heavy or greasy, doesn’t clog my pores, and most importantly, it doesn’t break me out. The finish feels lightweight and comfortable for everyday wear.
The only small downside is that if it gets into your eyes, it can burn a little, so I try to avoid applying it too close to the eye area. Other than that, it’s amazing and I will definitely keep repurchasing it
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Really good spf
Size: 2.5 Fl Oz (Pack of 1)
I’ve been using this for a little while now and I actually really like it. It feels nice on the skin, doesn’t feel heavy, and leaves my face looking fresh and smooth. I also noticed my skin feels softer after using it consistently. Definitely something I would buy again.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Pretty lightweight
Size: 2.5 Fl Oz (Pack of 1)
Although it still leaves a little bit of a shine ( more of a dewy look), there is definitely not that much of a greasy feel which really helps me to keep being consistent with using sunscreen because my big issue with using other sunscreens is that they're too greasy feeling and not lightweight and leave too much of a shine on my already oily face.
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Reviewed in the United States on May 1, 2026
★★★★★ 5
Fluid
Size: 2.5 Fl Oz (Pack of 1)
I love the texture it has, it's very good and fluid The container is big
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Reviewed in the United States on May 17, 2026