I wanted something to cover my feet during the slow march through airport security. Sure, it is difficult to create a sense of dignity when you are being patted down by the TSA, but having your feet wrapped in stretchy lace helps maintain a positive attitude even if you must remove all your other clothing. I wear a size 8 shoe, and these provide a nice comfortable fit. Since they come in a three-pack, I offered to share them with my husband, but he wisely declined since they would have been stretched to their limit on his size 12 foot.