SKU: 12020650711

Mainline Helmet

Sale price$157.50 Regular price$175.00
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Mainline HelmetGive credit where credit's due. Thank your mom, your legs, and your gear for giving you the opportunity to land that rocky gap. Made for going big, going fast, or both, the Smith Mainline is our pinnacle, downhill certified enduro bike helmet. Safety innovations like Koroyd and MIPS provide energy absorbing impact protection so you have the confidence to get aggressive on the trail. It doesn't matter if you're slaying the EWS in Whistler or suffering

Give credit where credit's due. Thank your mom, your legs, and your gear for giving you the opportunity to land that rocky gap. Made for going big, going fast, or both, the Smith Mainline is our pinnacle, downhill certified enduro bike helmet. Safety innovations like Koroyd™ and MIPS® provide energy-absorbing impact protection so you have the confidence to get aggressive on the trail. It doesn't matter if you're slaying the EWS in Whistler or suffering through the last stage of your local enduro race, you need a breathable, lightweight helmet that pairs well with goggles and fits like a glove. The Mainline integrates with your bike goggles for efficient venting and fog-free vision. Multiple pad sets including liners and neck-rolls let you customize the fit.

FEATURES:

  • Protection
    • Complete Koroyd® coverage for lightweight, energy-absorbing and ventilated impact protection
    • MIPS® Brain Protection System reduces rotational forces caused by angled impacts to the head
    • CPSC CE EN 1078 and ASTM F1952 downhill certified
  • Fit / Integration
    • Designed for ultimate integration with Smith performance goggles for maximum comfort, venting and storage convenience
    • AirEvac™ ventilation system integrates with Smith goggles for fog-free lenses
    • Three washable cheek pad kits, two crown liners and two neck rolls let you fine tune the fit
    • D-ring chin strap fastener for a snug fit

SPECS:

  • 21 fixed vents for consistent airflow
  • Adjustable visor
  • Hybrid X-STATIC® / Ionic+® anti-bacterial performance lining for odor resistance
  • Weight (Size M, MIPS®): 27 oz / 770 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: 12020650711

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4.9 ★★★★★
Based on 21 reviews
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A
Verified Purchase
Amazon Customer
Cuba, US
★★★★★ 5
Boyshorts
Size: X-Large, Color: Multicolored-3-3901-2
Love these for sleeping comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 16, 2025
T
Verified Purchase
Tara McDowell
Port Orchard, US
★★★★★ 1
Material was scratchy
Itchy material
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Reviewed in the United States on April 16, 2026
K
Verified Purchase
Kim
Massapequa, US
★★★★★ 5
Awesome
Size: Medium, Color: Set-un8
Great fit, pretty colors and actually cotton very happy I bought theses
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Reviewed in the United States on January 5, 2026
D
Verified Purchase
Delaney Johns
Massapequa, US
★★★★★ 2
Could do in a pinch, 'meh' quality
Size: Small, Color: Set-un8
Eh, I guess these are fine for the price. They're not super high quality, and the fit is kind of weird in my opinion. I have doubts that they would last a lot of repeat washings, especially the waistband. I returned them.
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Reviewed in the United States on June 3, 2025
A
Verified Purchase
Angie Rae
Lake Worth, US
★★★★★ 5
Love These
Size: Medium, Color: Off White/Rose Wood/Black
I am very sensitive to any kind of chemicals so I have to buy organic cotton fabrics. I have to wash anything I buy at least 5-10 times so I won't have a reaction. I only had to wash these about 5 times and had no reaction. I have a little muffin top, so I like the high waist. They fit really well, true to size. They are thin but well made. I will most likely buy again. I am 130lbs and 5'8"
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Reviewed in the United States on March 13, 2026

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