Yarn > Brand > Cascade > Cascade 220 Superwash Cascade 220 Superwash is the proverbial favorite for knitters and crocheters who want the quality of 100% wool and washability at the same time. Each 100 gram/3.5 oz. skein boasts 220 yds. of fun. On the recommended US 6-7 (4.0-4.5mm) needle, Cascade 220 Superwash knits at 22 sts. per for inches (10 cm). Machine wash cool, tumble dry low.