This is a fun, fast knit, created from the brim up to the crown, knitted in the round. The pattern comes in one size, but is very easy to modify, both by adding more/less stitches and also by using yarns of varying weight - instructions to do this are in the pattern.

The picture above is using about 150 yards (137 m) of black and an equal amount of white Yarnspirations CARON Simply Soft yarn.