Taken from Vogue Knitting International Magazine - '12 Crochet: "This textured wrap is worked with two strands in one long rectangle in a bobble/shell-stitch pattern, then folded and joined to create the neck opening."
This pattern is in Vogue Knitting International Magazine - '12 Crochet, page 113.
US M/N crochet hook (or size needed to obtain gauge) is required but not included.