Stratus Storm Cell Under Helmet Hat ski map some base scratches and light

some base scratches and light top sheet damage

100% waterproof and breathable GORE-TEX® insert

thanks to its high-modulus polyethylene construction

Inside Leg(Long) 81cm

This book collects the scientifically backed and athlete-tested wisdom and experience of three of the best uphill athletes and coaches and extrapolates both to educate outdoor athletes of all stripes to perform their best

Stratus Storm Cell Under Helmet Hat ski map some base scratches and lightDesigned 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.