The pattern includes instructions for seven sizes. Brim is worked first, then the top of the hat.
0 - 6 months 6 - 12 months 1 - 3 years (Toddler) 3 - 10 years (Child) Teen Women Men
Using worsted weigth yarn and 4.5 mm (G) and 5mm (H) crochet hooks
For this particular design you should know to work on back loop only, single crochet, double crochet and single crochet decreases.
Gauge: 4” x 4” = 18 hdc blo x 11 rows