As of 2015, CrochetForCancer.org and BrimmingWithLove.com offer directories that list a variety of crochet, knitting and sewing patterns for hats for cancer patients. Featured patterns include a crocheted chemo cap from RedHeart.com, a turban from Sewing.org and a knit chemo cap from HeadHuggers.org.
Red Heart's chemo cap pattern calls for two balls of cotton yarn and two crochet hook sizes. The finished cap fits most women. The turban pattern from Sewing.com is a simple design ideal for beginning sewers. The design has only three pattern pieces. The site recommends using knit fabric and sewing with a zigzag stitch or serger. Head Huggers' knit cap pattern uses two balls of yarn to create a striped, ribbed cap.