Design by Bev Galeskas. Sizes for adults and children. Give these felt hats a personal touch by decorating to suit your style. Exact finished size is determined by the amount of felting and how your hat is blocked. Worsted weight wool or a wool & mohair blend that will felt easily. If using two colors, both should be the same type of yarn. Important- Even two colors of the same yarn may felt at different rates. To avoid disappointment, it is essential that you test felt your yarns together.