SKU: 53166706388

SM-3 Radium Youtth Helmet

Sale price$134.97 Regular price$149.97
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Shipping Estimate
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 28 - Sep 2

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For Your Every Summer RSVP, with Code: SUMMER15

Description

SM-3 Radium Youtth HelmetAnatomically engineered and profiled specifically for youth and younger riders Optimized for MX, Enduro and Offroad use Features a thermo injected shell incorporating a special polymer blend Engineered to deliver the optimal combination of impact protection and light weight Lightweight outer shell is constructed from a technologically advanced impact resistant thermoplastic Inner shell is constructed with a composite fiber assembled between the outer

  •  Anatomically engineered and profiled specifically for youth and younger riders
  • Optimized for MX, Enduro and Offroad use
  • Features a thermo-injected shell incorporating a special polymer blend
  • Engineered to deliver the optimal combination of impact protection and light weight
  • Lightweight outer shell is constructed from a technologically advanced impact-resistant thermoplastic
  • Inner shell is 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
  • Medium and Large share the same EPS size and allows
  • Medium to configure to a Large as the rider grows
  • Multiple density inner liner ensures the helmet is equipped with the correct density in the correct area for enhanced impact absorption, while also helping reduce overall weight
  • Inner and outer surfaces are engineered to minimize the effects of oblique impacts
  • Alpinestars 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
  • Alpinestars 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
  • Maximized ventilation and high levels of heat transfer exchange thanks to 10 inlets and 7 exhaust ports
  • Visor has been designed to direct air into the ports for enhanced airflow
  • 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 25 mm for optimal safety and rider comfort
  • Stainless steel D-rings ensure a tight and secure fit
  • Weighs 1,170 g
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: 53166706388

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4.5 ★★★★★
Based on 8 reviews
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Verified Purchase
Serina Anthony
Port Orchard, US
★★★★★ 5
Fun alternative to traditional tuxedo
Size: Large, Color: Black-2 Pieces, Size: Large, Color: Black-2 Pieces
Fairly good quality. Hubby wore this as fun alternative to his regular tux in a cruise elegant night. Looked sharp and we even got family pictures in it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 13, 2025
O
Verified Purchase
Octavia Ward
San Leandro, US
★★★★★ 5
Great for price ⭐
Size: Small, Color: Blue-2 Pieces, Size: Small, Color: Blue-2 Pieces
Bought this for my son's junior prom and it looked so good on him. I had to get a few alterations done because it was a bit too big for him but all in all great quality for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2025
K
Verified Purchase
krystal smith
Waukegan, US
★★★★★ 5
Perfect suit
Color: Wine Red, Size: X-Large, Color: Wine Red, Size: X-Large
I love the suit it fitted my son perfect
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
K
Verified Purchase
KP
Pawtucket, US
★★★★★ 5
Omg absolutely stunning!!!
Color: Blue, Size: X-Large, Color: Blue, Size: X-Large
I purchased this suit for my son‘s prom and I must say I know he was going to be the most handsome young man there!!! It fit to size, the quality was good, and the royal blue was popping! I would highly recommend!
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Reviewed in the United States on April 21, 2026
S
Verified Purchase
Susan hartley
Chelsea, US
★★★★★ 5
Outfit for prom, worked perfectly!
Color: Blue, Size: Medium
Very nice, no problems!!
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Reviewed in the United States on May 12, 2026

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