Alv ;y is a warm and refined hat with classic rib knitting. Its clean design gives it a subtle, timeless look. The hat features a double-layer construction, with an outer layer made from 100% fine Norwegian wool for natural warmth and durability, and a soft merino wool lining on the inside for exceptional comfort. Some colorways feature a contrasting base for a more dynamic look. Unisex One size Rib-knit with 100% fine Norwegian wool on the outside and 100% skin-soft merino wool on the inside Designed and knitted in Norway Machine wash using wool-cycle Heron - Fine Norwegian Wool Made from 100% fine Norwegian wool from the sheep&';s very first shearing. The fibers are short, giving us a finer and softer yarn. The outcome is thin, light and soft garments, while maintaining the brilliance, crimp and longevity for which Norwegian wool is world renowned. Norwegian wool is one of the world&';s most animal-friendly textile fibers, due to the sheep&';s natural mountain life. Our Norwegian wool comes from sheep known for roaming freely in the vast Norwegian hillsides while grazing in natural pastures. To make it machine washable the Heron yarn undergoes a revolutionary new wool treatment using natural non-toxic salts. Machine wash using wool-cycle. (Fiber diameter: 30.5 micron)