Flour sack kitchen towels are a leftover from a time when people recycled the actual cotton bags that flour or feed came in. These were made of soft, tightly woven cotton that could be repurposed into clothes, towels, diapers and other household items. They are lint-free so they can be used as glass towels. Completely absorbent and easily washable they are the true workhorses of the kitchen. All of this makes them really good solid towels for your kitchen.