This knitting pattern includes written instructions on how to knit the hat in 3 different sizes. There is a chart for the colorwork section. Intended for a beginner to intermediate knitter, this pattern covers increases, stranded colorwork, and decreases. It includes instructions on how to knit a great, well fitting hat with a bit of slouch.
Knitters have the options of using two different needle sizes to obtain bigger or smaller hats, so gauge may vary. I’ve test knitted all the sizes and needle combinations though and can say that the colorwork pattern looks great even with a slightly different gauge.

One ball of each color will more than suffice.
Enjoy knitting this hat of Finn the human, the great hero in the land of Ooo. I love Adventure Time, and hope you enjoy knitting this hat as you watch a few episodes!