This was a quickie - about the length of one movie to make -- fun soft and warm. Yarn was Lion Brand Velvetspun, color "bluebell"., 1 skein. I knit this on 10.5 (US) needles, 40 sts. total cast on, and it fits a 20" head using the formula on this great hat/any size any gauge sheet. Simple rolled brim (meaning, if you knit it in the round in stockinette stitch, the brim makes itself) with a simple I-cord topper.