A rectangle is folded to create the heel and toe. The string around the top has two purposes; to keep the slippers on the feet, and to put one slipper into the other. Pull the string to close, and put the purse slippers into your purse! For a good snug fit, the slippers are worked in a slip stitch ribbing, the most stretchy crochet stitch, using a DK-weight yarn and a size G/7/4.5mm crochet hook. Sizes: S (M, L).