The Alvy hat features a double-knit construction with 100% fine Norwegian wool on the outside and skin soft merino wool on the inside. The hat features a contrast color rib knit.By selecting the finest Norwegian wool from the sheep’s very first shearing, the fibers are short, giving us a finer and softer yarn. The outcome is a thin, light and soft hat, while maintaining the brilliance, crimp and longevity for which Norwegian wool is world renowned.