Koroyd impact protection: Absorbs and converts kinetic energy for enhanced safety on rugged terrain
MIPS brain protection system: Reduces rotational forces from angled impacts to the head
Airevac ventilation system: Integrates with Smith goggles for efficient airflow and fog-free vision
Adjustable fit system: Includes multiple washable cheek pads, crown liners, and neck rolls for personalized comfort
D-ring chin strap fastener: Ensures a secure and adjustable fit during high-speed activities
Summarized by Shop
Description
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 protecti
Weight
27 oz (770 g) for size M
Sizes available
Small (S), Medium (M), Large (L)
Certifications
CPSC, CE EN 1078, ASTM F1952, NTA 8776-E
Ventilation
21 fixed vents, Airevac system
Lining
Hybrid X static ionic antibacterial performance lining
Chin strap
D-ring fastener
Summarized by Shop
5.0
32 ratings
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1
fits perfectly! doesnt obstruct my peripheral vision at all. lighter than expected and has great airflow!
E
Evelyn · August 17, 2026
Helmet fits well after you change the pads to fit you, the airflow through the goggles is fantastic to keep you from sweating too much and keeping fogged lenses away. Excellent buy!
