You will need :
1 skein of thick and thin corriedale yarn (ours is about 56 yards)
20 mm knitting needle
Cast on 40 stitches
Row 1 : knit all the stitches
Row 2 : purl all the stitches
Repeat rows 1 and 2 until you reach row 18
Row 19 knit 2 stitches together until the end of the row.
Cut a threar of a meter long and pull it through the loose stitches, pull tight and sew , this is really easy due to the texture of the yarn :) weave in the ends and you are all done, stay warm with this pretty and easy thick and thin hat!