This adult hat is appropriate for both women and men. The hat is knit in the round in 2x2 ribbing on US size 9 (5.5 mm) needles, creating a stretchy fabric that will fit most sizes. The brim can be turned up or left down. Worsted weight yarn is used and the striping pattern offers the opportunity to use up left over and/or stash yarn. This is a quick and easy project.