Smith Mainline Helmet

SKU: E007429RX5155
Sale price$399.99

Color: Matte Black
Size: S
Smith Helmet Sizing
Size
Head Circumference

XS

48 - 52 cm

S

51 - 55 cm

M

55 – 59 cm

L

59 – 62 cm

XL

61 – 65 cm

 

To measure your head circumference, wrap a flexible tape measure or piece of string around your head at its widest point – about an inch above your eyebrows. If using the string method, mark the end point and lay flat against a measuring stick or ruler. 

Once you have your measurement, match it to the size chart above to find your suggested helmet size. 

In-store: Pick up today or ship to home

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 Mainline is Smith's 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 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. 

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
  • Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older as well as CE EN 1078, NTA8776 E-Bike and ASTM F1952 Downhill

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

Features

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