Yarn: Magpie Fibers Nest Worsted (100% non-SW Corriedale wool, 210yds/192m per 3.53oz/100g skein); samples knit in Magpie (blue) and Twilight Bronze (greenish brown).
If using a substitute yarn to work pattern as written, I suggest a similar worsted weight wool to the Nest, or a wool blend yarn with good memory and a round, even fiber that will show off a cable well. A subtle heather, tweed, or solid colorway will work best, and a wool or wool blend will give the look and feel of the original.
Gauge: Cable pattern: 24 sts/26 rounds per 4”/10cm. Ribbed brim: 22 sts/28 rounds per 4”/10cm. Gauges are based on final blocked fabric, laid flat.
Needles: US#7/4.5mm and US#6/4mm needles, or sizes to get gauge. 16”/40.5cm circulars for body and DPNs in larger size only for crown.
Sizes:
16.75(20,23.25)”/42.5(50.75,59)cm circumference around head.
About 8(8,9.75)”/20.25(20.25,24.75)cm deep with brim folded, and 10(10,12)”/25.5(25.5,30.5)cm unfolded from cast on to center of crown.
I suggest choosing the size with 1-2”/2.5-5cm of negative ease around head for a snug-fitting hat.
Yardage:
185(215,250)yds
170(195,230)m worsted weight yarn
If substituting yarn or modifying hat, yardage may vary. The 20”/50.75 size uses a full skein of Nest, so plan accordingly.