The Twisted Rib Hat is a warm, easy to knit hat that works up quickly with Aran Weight Yarn and US size 9 needles. Knitted in the round, switching to magic loop at the crown, it is suitable for novice knitters who are ready to take on their next challenge as well as experienced knitters looking for a project for social knitting. The written pattern includes sizes suitable for an older child/teen, a women, and a man. (S,M,L).