Mainline MIPS SunglassSale or add a beanie on

or add a beanie on the coldest storm days

is the only helmet a kid needs

The Mainline integrates with your bike goggles for efficient venting and fog-free vision

Mips®): 10 oz / 290 g

Interchangeable lenses

Mainline MIPS SunglassSale or add a beanie onProduct Details 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 CPSC, CE EN1078 and ASTM F1952 (Downhill) certified Fit Integration Designed for ultimate integration with Smith MTB goggles for maximum comfort, fit, and venting AirEvac ventilation system integrates with Smith goggles for fog free lenses