SKU: 79056503745

Alpinestars SM3 Helmet - Radium - Gloss Black/Red Fluo/White

Sale price$123.72 Regular price$137.47
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 23 - Aug 28

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Description

Alpinestars SM3 Helmet - Radium - Gloss Black/Red Fluo/WhiteFeatures Varied thickness shell construction for optimized protection and light weight Optimized for MX, Enduro, and Offroad use Delivers blend of performance, protection, and comfort Key Features Features thermo injected shell incorporating a polymer blend enhanced by varying degrees of thickness that is engineered to deliver the optimal combination of impact protection and light weight Lightweight outer shell is constructed from impact resistant

Features

  • Varied thickness shell construction for optimized protection and light weight
  • Optimized for MX, Enduro, and Offroad use
  • Delivers blend of performance, protection, and comfort
  • Key Features
  • Features thermo-injected shell incorporating a polymer blend enhanced by varying degrees of thickness that is engineered to deliver the optimal combination of impact protection and light weight
  • Lightweight outer shell is constructed from impact resistant thermoplastic
  • Inner shell constructed with a composite fiber assembled between the outer shell and the EPS liner for maximum protection against impacts
  • Fit can be tailored to the rider's head thanks to the helmet's crown and cheek pads
  • Construction
  • Multiple density inner liner ensures the helmet is equipped with the correct density in the correct area for enhanced impact absorption, while also helping to reduce overall weight
  • 6-piece EPS liner with five densities to effectively manage volume and impact performance
  • Polished inner EPS liner with special coating to reduce friction with comfort liner for rotational impact management
  • The inner and outer surfaces are engineered to minimize the effects of oblique impacts
  • Low friction coating is applied to the inner part of the main EPS liner to reduce the rotational acceleration forces that can result form certain oblique impacts
  • Maximized ventilation and high levels of heat transfer exchange thanks to ten inlets and seven exhaust ports
  • The visor has been designed to direct air into the ports for enhanced airflow
  • 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
  • Comfort liner is constructed using recycled materials for a lower carbon footprint
  • Hydration tube channels are integrated into the helmet's cheek pads for convenience and performance
  • Soft textile chin strap is 25 mm for optimal safety and rider comfort
  • Protection
  • 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
  • Chin area optimized for superior impact performance
  • Stainless steel D-rings ensure a tight and secure fit

Certifications

  • Conforms to both DOT certification and ECE 22.06 homologation
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: 79056503745

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4.8 ★★★★★
Based on 26 reviews
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Blueberry Hill
Dallas, US
★★★★★ 1
Awful fabric
Size: Large, Color: White Stripe
Not too shear but very thin and clingy, like wearing cling wrap. Returned.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 21, 2021
N
Verified Purchase
Nonnie Muss
Phoenix, US
★★★★★ 1
Itsy bitsy teeny weenie.
Size: Large, Color: White Stripe
Teeny tiny. I ordered a large, as I wear a size 10-12 and larges are usually perfect or even a little big on me. This could be described a a child’s size large. I could technically fit into it, but it qas skin tight and stretched out all over. “Slim fit” indeed. Even the sleeves are too tight and very short. If you order, go at least two sizes bigger than you usually wear.
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Reviewed in the United States on January 12, 2026
E
Verified Purchase
Ellie W.
Birmingham, US
★★★★★ 1
Ran ver small
Size: Large, Color: White Stripe
A size smaller than normal. Tight through body but nice longer length.
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Reviewed in the United States on August 10, 2021
R
Verified Purchase
Rhonda Santis
Fort Morgan, US
★★★★★ 1
Stretchy and poor quality
Size: Large, Color: White Stripe
Shirt was way to big and just got more stretchy and schlumpy with just and hour or two of wear. Not a classic Breton style shirt so do not expect much
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Reviewed in the United States on December 10, 2022
K
Verified Purchase
Kindle Customer
Lowell, US
★★★★★ 1
Poor quality
Size: Large, Color: White Stripe
See through, thin, and rough feeling. Not anything like the material the Amazon brand t-shirts are made of.
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Reviewed in the United States on October 17, 2023

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