Designed to perform great, go fast, or both, the Smith Mainline is our downhill-certified enduro bike helmet. Safety innovations like Koroyd and MIPS provide impact protection with energy absorption so you can feel confident being aggressive on the trail. It doesn’t matter if you’re crushing the EWS in Whistler or suffering through the last leg of your local enduro race, you need a breathable and lightweight helmet that pairs well with glasses and fits like a glove. The mainline integrates with bike glasses for efficient ventilation and fog-free vision. More sets of padding including liners and a neck roll allow you to customize the fit.
- Full Koroyd coverage for lightweight, energy-absorbing, and 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 glasses for optimal comfort, ventilation, and storage practicality.
- The AirEvac ventilation system integrates with Smith glasses 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 X-STATIC / XT2 antibacterial liner for odor resistance.
- Weight (size M, MIPS): 27 ounces / 770 g.
- Color: Multicolor (Matte Zero Gravity).
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