Gauge: 17 sts in stockinette stitch in 4in /10cm

You will need yarn (up to 60 grams for the smallest size, up to 130 grams for the largest size), knitting needles to obtain the gauge, a tapestry needle to weave in the yarn ends. A stitch marker, two buttons, sewing needle and a matching thread to sew on the buttons, three stitch holders.

Since the hat is knit in the round, you will need either double pointed needles or circular needles for magic loop.