Skip to main content

Smith Optics Mainline

Smith Optics Mainline
  • Color: Matte Black
Color: Matte Black
Size: Select size
Please select options Unavailable


Aerocore™ construction featuring 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 178 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

21 fixed vents for consistent airflow
Adjustable visor
Hybrid X-STATIC® / XT2® anti-bacterial performance lining for odor resistance
Weight (Size M, MIPS®): 27 oz / 77 g


Mainline Tech

A deeper look at the technology inside the Mainline helmet.

Smith Mainline Full Face Helmet

For years we’ve been gathering feedback and insight from our athletes on what features a mountain bike helmet would need to give them the confidence to perform their best. The answer was simple… HOW ABOUT A FULL ONE!

Part Numbers

Option MPN Store SKU
Matte Black / Small 716736216850 MAI33569624M
Matte Black / Medium 716736216867 MAI34500197M
Matte Black / Large 716736216874 MAI33519969M