SKU: 26662421905

Alpinestars - S-M3 Solid Helmet

Sale price$159.30 Regular price$177.00
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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

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Description

Alpinestars - S-M3 Solid HelmetAlpinestars S M3 Solid Helmet The S M3 Solid Helmet is built for riders who want a modern off road helmet with serious protection and a clean, aggressive look. Description: 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

Alpinestars - S-M3 Solid Helmet

The S-M3 Solid Helmet is built for riders who want a modern off-road helmet with serious protection and a clean, aggressive look.

Description: 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.

Why We Like It

We like this helmet because it feels secure without being overly heavy, and the venting actually works when you’re charging hard.

Why It’ll Work for You

If you’re after a helmet that can handle moto days, off-road loops, and everything in between, this one gives you dependable protection and comfort.

Variants / Options

Available in multiple shell sizes and graphics so you can get a confident fit and a look that matches your style.

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 weighs 1430g (ECE) and 1460g (DOT).
  • 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.
  • The inner and outer surfaces are engineered to minimize the effects of oblique impacts.
  • 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.
  • Alpinestars has introduced a new in-house standard for the SM3 helmet to test the helmet’s chin to conditions heavier than the homologation standard, and in order to pass the Alpinestars’ new standards, the shell thickness and the structure of the helmet design itself have both been optimized on the chin area for superior impact performance.
  • The inner and outer surfaces are engineered to minimize the effects of oblique impacts.
  • Equipped with an EUPDATEncy 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.

Shop More Alpinestars Gear

Build out the setup with Alpinestars helmets, goggles, gloves, and rider protection. For replacement timing and care tips, see our helmet, boot, and gear replacement guide.



Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 26662421905

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Brandon Utter
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★★★★★ 5
Great watch, buy it!
Color: Big Dial Gold Men Watch
I tested all the negative feedback comments and didn’t find any of them to be accurate. This is a great watch with a beautiful dial. End of story.
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Reviewed in the United States on August 11, 2025
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BLING BLING 💎
Color: Big Dial Gold White Men Watch
It's not the GREATEST quality. But if you look at it from a foot or two away, it looks good! BLING BLING!
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Reviewed in the United States on August 7, 2025
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Amoo
Grantham, US
★★★★★ 5
It got the job done.
Color: Big Dial Gold White Men Watch, Color: Big Dial Gold White Men Watch
Needed it for my son’s 8th grade dance. It was nice for costume jewelry.
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Reviewed in the United States on April 20, 2026
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Amazon Customer
Battle Creek, US
★★★★★ 5
Great watch
Color: Big Dial Gold Green Men Watch
This watch is so nice in person!, pictures don't do it justice . Great color and good quality for the price!! I definitely recommend !
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Reviewed in the United States on March 14, 2026
J
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Joe Cool
Phoenix, US
★★★★★ 1
Beautiful Watch, But It Doesn't Work and Customer Support is Non-Existent
Color: Sliver Band Blue Face-5009, Color: Sliver Band Blue Face-5009
Update: However, after two weeks I noticed the watch would stop working. I would reset the time and it would work for a day or two and stop again. It happened several times. I tried contacting the seller through Amazon twice but they never replied. The phone number listed by Amazon's Contact the Seller doesn't work. I tried calling it twice and all I got was a message saying that my call could not be connected. I contacted Amazon and they authorized a return and now I'm going to have to find a different watch from a different Amazon seller. I'm extremely disappointed because I really loved this watch! I can not in good conscience ever recommend this brand of watches so I changed my review form a 5 star to a 1 star. Previous review: The model I purchased is the OLEVS Stainless Steel Quartz Movement model # 5009G with the blue face. I chose this watch because I have a 9" wrist and this particular model came with a 9.05" band and it fits perfectly! It opens just big enough to slip over my XXL hand the band is just loose enough to have the slightest shift back and forth when closed so it is quite comfortable to wear. The watch is truly beautiful, and light weight. I can't believe how low the price was! My eyesight is not the best so I don't need a fancy watch with three different dials on the face (truthfully I didn't really need the date on this watch since I can't read it without glasses) but I can glance down at the watch and tell the time, and that's all I need. The watch came with the band extended to its longest length, but a tool was included to adjust the band to a smaller size if needed. This manufacturer has many, beautiful watches to choose from! But be careful if band length is a special concern for you. Make certain when you select the color and design you want to scroll down to "Looking for specific info" and ask what the band length is. I found it can vary between the different watches shown on the order page you're viewing. Some watches will have a band length listed in millimeters and others in inches, so you may need to do some conversions. The watch looks very similar to a Citizen watch I've been wearing for at least 15 years (probably closer to 20). The Citizen had been eating $5 batteries every two months for years, and it still lost time like crazy. I finally decided enough was enough and started looking for a nice watch. This is for everyday, and formal wear.
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Reviewed in the United States on September 15, 2024

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