The Hipster Hat is worked bottom up in a 2x2 rib stitch. The bottom has a folded edge of about 6 cm (you can do a double folded edge if you knit the hat extra-long, but bear in mind that this will require more yarn than suggested). The decreases at the top of the head are done by working 2 sts together on each side of two k sts a total of 4 times across the round.