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. 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 odor resistance
• Weight (Size M, Mips®): 27 oz / 770 g