Yarn: 100 yards bulky weight 2 ply yarn
Needle: A size 11 US circular needle, 16” long (or whatever floats your boat for circular knitting) Also, a cable needle.
Gauge: 4 sts. per inch in stockinette, 5 sts. per inch in pattern

Adrian says, “The cables and purl stitches create deep ribs so that this tube should fit over any size head and still be snug and warm on the neck.”