This adorable rainbow polka dot hat knitting pattern is such a fun knit and you can choose any of your favorite rainbow colors! This cute rainbow hat knitting pattern is knit in the round and the polka dots are added at the end with duplicate stitch. Please see below to know how many rainbow colors you need to choose for each size.

Number of rainbow colored yarns required for each hat size:
0-3 months - 7 colors
6 months - 8 colors
Age 1-2 years - 9 colors
Ages 3-6 years - 10 colors
Child Large/Adult Small - 11 colors
Adult Large - 12 colors

SIZING AND INFO
-This PDF pattern contains instructions for approximate sizes:
0-3 months, 6 months, 1-2 years, 3-6 years, Child Large/Adult Small, Adult Large
-Gauge: 19 st = 4 inches.