Designed to go big, go fast, or both, the Smith Mainline is our downhill-certified enduro bike helmet. Safety innovations like Koroyd and MIPS provide energy-absorbing impact protection so you can be confident while being aggressive on the trail. Whether you’re crushing 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 your goggles and fits like a glove. The Mainline integrates with bike goggles for efficient ventilation and fog-free vision. Multiple padding sets including liners and a neck roll allow you to customize the fit.
- Full Koroyd coverage for lightweight, energy-absorbing, ventilated impact protection.
- MIPS Brain Protection System reduces rotational forces from angled impacts to the head.
- CPSC CE EN 1078 and ASTM F1952 downhill certification.
- Designed for maximum integration with high-performance Smith goggles for ultimate comfort, ventilation, and storage convenience.
- The AirEvac ventilation system integrates with Smith goggles for anti-fog lenses.
- Three washable cheek pad kits, two crown liners, and two neck rolls allow you to optimize the fit.
- 21 fixed vents for consistent airflow.
- Adjustable visor.
- Hybrid antibacterial liner X-STATIC / XT2 for odor resistance.
- Weight (size M, MIPS): 27 ounces / 770 g.
- Color: Green (Matte Forest).
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