This pattern is written four different ways for four different weights of yarn (DK, worsted, bulky, and super bulky). All the hats have the same dimensions at the end, they will just require more repeats of the pattern and more cast on stitches the lighter the weight of yarn.

Gauge - DK(worsted, bulky, super bulky)
With US 4(5, 8, 11) needles:
30(27, 17, 9) stitches and 27(24, 19, 13) rows make a 4” square in 1x1 rib (brim pattern)

Skills to know
knit/purl
cast on
knitting in the round on circular and double pointed needles
LPC and RPC cable stitches (again, instructions included)
k2tog/p2tog

Materials needed
for DK weight:
188 yards of DK weight yarn (I used Berocco Vintage DK)
US 4 (3.5mm) 16” circular needles
US 6 (4mm) 16” circular needles
US 6 (4mm) double pointed needles

for worsted weight:
164 yards of worsted weight yarn (I used Malabrigo Rios)
US 5 (3.75mm) 16” circular needles
US 7 (4.5mm) 16” circular needles
US 7 (4.5mm) doubles pointed needles

for bulky weight:
120 yards of bulky weight yarn (I used Hayfield Chunky with Wool)
US 8 (5mm) 16” circular needles
US 10 (6mm) 16” circular needles
US 10 (6mm) doubles pointed needles

for super bulky weight:
92 yards of super bulky weight yarn (I used Lion Brand Thick and Quick) US 11 (8mm) 16” circular needles
US 13 (9mm) 16” circular needles
US 13 (9mm) doubles pointed needles