I really love the messy bun beanie style, but I dont knit or crochet so these hats are sewn with knit fabrics on the outside, and a soft, solid knit as the lining. When buying knit fabrics, it gives me the opportunity to find so many beautiful knit, crochet, and lace prints that make a truly unique hat. The opening on the top is made a bit larger than normal as to accommodate longer or thicker hair. They also have decorative accent buttons on the hat brim.