Taken from Interweave Knits, Gifts 2014: "In a welted pattern worked in a continuous spiral with yarn held double, the roomy Galaxy Cowl knits up quickly."
This pattern is from Interweave Knits, Gifts 2014, pg 110 - Galaxy Cowl.
Size US 10.5 - 24" circular needles (or size needed to obtain gauge), stitch markers, and a tapestry needle are required but not included.