Sirdar makes knitting yarn and crochet yarn including Sirdar cotton yarn, Sirdar wool yarn, Sirdar sock yarn and Sirdar ranco yarn. Sirdar also publishes knitting pattern books and crochet pattern books. Royal Yarns sells most Sirdar yarns, colors and Sirdar pattern books. Sirdar yarn inventory and color selection is viewable by clicking any link below. All Sirdar sale discount yarns are flagged with a bright red Sale sign. If any Sirdar item is out-of-stock, we will gladly special order it, no deposit or minimum order required.