Get your kids in on the reusable bag trend! These are perfect for stowing extra clothes for sleepovers, classes and the like. The bags are super lightweight (they weigh just over 1 ounce!), waterproof and fold up into a 4-inch roll when not in use. They can be stuffed full of gear- each bag holds the equivalent of 2 supermarket plastic bags - up to 40 pounds. These bags make such a nice environmentally friendly gift.