Size:
4 sizes (small / 16”, medium / 18”, large / 20”, x-large / 22”) - worn with 2-4” of negative ease

Yarn:
1-2 skeins dk weight yarn (I used 1 skein of 231 yards / 100 g dk weight yarn held double for a size medium and used every bit of yarn)
150 yards lace weight yarn (Mohair or Suri)

yarn is held triple throughout the entirety of the hat to create a chunky weight fabric. Alternative: You could always use 1 full skein and use about 40-50g of another color for the inside of the brim (first 3” or so of knitting)

You can always use about 150 yards of weight 5 chunky yarn as an alternative.

Needles:
US 8 / 5 mm 16” circular needles or dpns
US 9 / 5.5mm 16” circular needles or dpns
Spare 16” circular needles of similar size for provisional CO

Gauge:
14 sts x 22 rounds = 4” stockinette in the round on smaller needles

Other:
Similar size crochet hook, scrap yarn, scissors, darning needle, stitch marker