The better alternative to single-use plastic bags, Bumkins reusable large snack bags / sandwich bags are made from the same waterproof fabric as Bumkins award-winning SuperBib. Single-ply construction means no worrying about icky stuff growing between layers of fabric. Great for food and fun, snack bags help organize lunches, toys, electronics and more. They’ll even fit a bagel! Although fabric is waterproof, bags are not completely leakproof due to zippered closure. Durable zipper closure