Meet Wool-Ease® Yarn! Wool-Ease® is a 4-ply worsted-weight yarn that is so beloved by knitters and crocheters that it inspired an entire family of yarns. Wool-Ease® is appreciated for its versatility and value. It has the feel, warmth and softness of wool, combined with the easy care of machine wash-and-dryability. Its extensive color range makes it easy to design with and perfect for every project from socks to afghans.