King Cole DK Cardigan & Sweater Crochet Pattern. Size 34-46 in. King Cole recomend any of their Double Knitting Weight yarn, design is made in KC Merino DK. If you do not want to use merino wool try the lovely KC Smooth DK it is very light click here to view yarn. Designs use 4.00mm & 3.00mm crochet hooks & 1 button for cardigan.