Designed for high-output mountain activities, the Solution 150 Merino Quarter Zip Hoodie is made with patented Nuyarn stretch merino wool, a fabric that is stronger, warmer and dries faster than other merino wool fabrics by using technology that wraps a nylon core with extra fine merino fiber. The hoodie offers superior thermoregulation and moisture management and is naturally bacteria and odor resistant. Flatlock seams provide non-chafing seams, while the hoodie's shoulder panel is designed to eliminate pressure points when carrying a pack. Plus, integrated thumbholes make it easy to add extra layers without rolling up your sleeves.