SKU: 47061995177

Alpinestars - SM8 Radium 2 Helmet

Sale price$197.98 Regular price$219.98
Save 10%

Pay in installments of $54.99 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Alpinestars - SM8 Radium 2 HelmetAlpinestars SM8 Radium 2 Helmet The S M8s design is coherent to Alpinestars philosophy and shares distinctive themes with other products in the portfolio; a smooth, attractive, profile which is streamlined and free of any external channels and features that might act as a load point in an impact, or compromise the overall integrity of the construction. The surface curvature promotes reduced friction on impact, allowing deflection and the most

Alpinestars - SM8 Radium 2 Helmet

The S-M8’s design is coherent to Alpinestars philosophy and shares distinctive themes with other products in the portfolio; a smooth, attractive, profile which is streamlined and free of any external channels and features that might act as a load point in an impact, or compromise the overall integrity of the construction. The surface curvature promotes reduced friction on impact, allowing deflection and the most efficient transfer of energy to protect the rider’s head from direct force to the skull and referred to the neck and spinal column. The aperture is designed to accommodate a wide variety of goggles and the air vents in the shell are located to maximize ventilation efficiency.

Features: 

  • The S-M8 shell has been profiled with performance as a priority and with a design style that identifies the profile of the helmet and its sculpted surface as uniquely ‘Alpinestars’.
  • Another key feature is the S-M8 shell sizeng solution; each helmet fit size has its own appropriate shell size to deliver the most anatomical solution for the wide variety of fit needs worldwide.
  • The helmet’s shell construction utilizes a highly advanced molding technology with a multi-composite combination: Carbon, high density carbon outer layer that improves strength and efficiency of energy dissipation over the shell.
  • Uni-directional carbon composite layer that gives significantly greater radial strength around the shell, preventing compression but allowing controlled deflection for reducing transmitted impact energy.
  • Aramid fiber layer which provides critical penetration protection.
  • This combination of layers is given even greater performance with an epoxy resin bonding that offers the best possible strength and energy management; limited outer shell deflection means the energy spreads wider and is better absorbed by the EPS liner.
  • The result of the unique shell lay-up process employed in the S-M8 construction results in extremely effective impact protection. With a fully equipped helmet testing facility, within Alpinestars Racing Development Center, an exhaustive impact research program has resulted in the Supertech M8 returning linear and oblique impact performance which far improves upon current helmet regulation standard limits. For direct, linear, impact by an average magnitude of 41% and for rotational acceleration, oblique, impact performance by an average of 48%. 
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: 47061995177

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.7 ★★★★★
Based on 18 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
T
Verified Purchase
Tania S
Birmingham, US
★★★★★ 5
Very comfortable
Size: 14, Color: Light Green
I received so many compliments on my son’s outfit for graduation. 
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 26, 2025
H
Verified Purchase
Heissel S.
West Palm Beach, US
★★★★★ 1
no pure white.
no pure white.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 4, 2026
F
fnlhalas
Port Orchard, US
★★★★★ 5
suit
Size: 12, Color: Beige
Very nice suit set. size 12. seems to fit as expected. I love the quality. It does have multi colored thread, as it is not solid.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 21, 2025
C
Verified Purchase
Cristina Perez
West Palm Beach, US
★★★★★ 5
Great suit
Size: 12, Color: Sky Blue
Love the color the material and the fit. My son used it for his 1st communion and the suit was a hit. I did not use the gold tie. We bought him a bow tie that he picked. We got so many compliments.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
S
Verified Purchase
Savannah Khloe
Birmingham, US
★★★★★ 5
SonDay
Size: 3, Color: Champagne, Size: 3, Color: Champagne
There was no special occasion just the normal Sunday service. And yes this amazing Amazon three piece suit for toddlers was a hit. I loved it he loved it. Even our church members were in awe of this look. FYI the tie was included 🥰
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026

recommand products