Despite its full-face coverage, the Mainline is designed to remain lightweight, breathable, and comfortable for long days on the trail. A network of 21 vents works with Smith’s AirEvac ventilation system to promote airflow and help keep goggles fog-free while climbing or charging into descents. The helmet is built for seamless integration with Smith goggles, providing a secure fit and clear vision when riding fast and technical terrain. Multiple cheek pads, crown liners, and neck rolls allow riders to fine-tune the fit for maximum comfort and stability, while the adjustable visor and classic D-ring chin strap ensure secure performance when the trail gets rough. Product Details Complete KOROYD® coverage for lightweight, ventilated impact protection Mips® Brain Protection System helps reduce rotational forces during angled impacts Downhill-certified design built for aggressive enduro and park riding AirEvac ventilation system integrates with goggles for fog-free vision 21 fixed vents for consistent airflow Multiple cheek pad kits, crown liners, and neck rolls for customizable fit Adjustable visor for trail and park riding Secure D-ring chin strap closure Hybrid X-STATIC® / Ionic+® antimicrobial lining for odor control Weight: approx. 770 g (size M) Certifications: CPSC, CE EN 1078, NTA 8776 (E-Bike), ASTM F1952 Downhill
