Smith Mainline MIPS Helmet

While the Mainline is DH-certified and built for aggressive downhill riding, its focus on ventilation and lightweight construction makes it surprisingly comfortable for long days on the trail. It is a versatile choice if you prioritize full-face protection but don't want to sacrifice breathability.

Koroyd is a honeycomb-like structure that absorbs energy more efficiently than traditional foam upon impact. It also allows for better airflow through the helmet, which helps keep your head cooler during intense efforts.

Yes, the Mainline features an AirEvac ventilation system specifically designed to integrate with Smith goggles. This alignment helps pull warm air away from the lens to prevent fogging during high-exertion rides.

MIPS stands for Multi-directional Impact Protection System. It is a low-friction layer inside the helmet that allows for a sliding motion of 10-15mm in all directions, which helps reduce rotational motion transferred to the brain during angled impacts.

This specific size is designed for head circumferences between 59 and 62 cm. To get an accurate measurement, wrap a soft measuring tape around your head about an inch above your eyebrows and ears to find your widest point.