Stratus Storm Cell Under Helmet Hat Ski Accessories If you’re using tech-toe AT

If you’re using tech-toe AT boots and you care about uphill efficiency as much as downhill precision

Safety whistle

and we’re now proud to present the evolution of the R2v2… the R2 3

this upgraded version takes your trail running and outdoor adventures to new heights

long-distance shoe for confidence on training and adventure runs

Stratus Storm Cell Under Helmet Hat Ski Accessories If you’re using tech-toe ATDesigned for high output ski missions, the StormCell Under Helmet Hat delivers warmth and versatility in cold conditions. Made from 100% premium merino wool, it provides lightweight insulation, superior moisture management, and all day comfortwhether you're skinning uphill or charging down. Perfect under a helmet or on its own, this sustainably crafted, biodegradable layer keeps you warm while keeping your impact low.