Durable Reusable Freezer Clear Gel Ice Packs "No Sweat" for Lunch Bags, Coolers & Sore Muscles 8oz 6"x4"x1" (3 Pack) Keeps Lunch Cool for 4-6 hours. Made in USA. Tough fabric skin keeps clear gel from leaking in normal use Less watery condensation in humid climates. Fabric absorbs the water. Reusable. Freezes solid overnight No Water Mess or Soggy Sandwiches