Measurements: 22" inside circomference. This hat features a nice assortment of wool pattern. Inside is lined with cotton. We work with fiber and love combining colors and textures. We seek pieces which work well together, add color, whimsy, and playfulness to each piece. We have a studio together and, more often than not, collaborate on our work. When one of us needs inspiration the other usually provides it. One size fits most. Care: Spot clean as needed. Professional cleaning recommended.