What great fashion accessories! These vests are sure to add texture and style to any outfit. They are knitted using worsted weight cotton yarn and sizes 6 (4.00 mm) and 7 (4.50 mm) 31" circular needles and size 7 (4.50 mm) straight knitting needles. Vest 1 uses an additional size G (4.00 mm) crochet hook, and Vest 2 also uses a size 6 (4.00 mm) 16" circular needle.