PackIt is the first freezable bag that actively cools foods without the use of ice or freezer packs. Each PackIt Lunch Bag has a patented gel permanently incorporated into its lining so the entire bag freezes to put a chill on contents for up to an amazing 10 hours! While other bags merely insulate, a frozen PackIt actually creates cold, eliminating the need for melting ice or bulky gel packs. PackIt is so effective at cooling foods that you can confidently pack yogurt, milk, cheeses and meats. Any uneaten food comes home still fresh and goes back into the refrigerator for the next day, which reduces waste and saves you money. Fold the PackIt Freezable Lunch bag flat and store it in the freezer overnight or up to 12 hours to freeze completely for maximum performance during use. A zipper closes in the cold air and a buckle handle can clip onto totes, backpacks or strollers for hands-free transport. PackIt products are made from food-safe, nontoxic poly canvas and are PVC, BPA, phthalate and lead-free. To clean, simply wipe out and spot clean the exterior. PackIt Bags are covered by a Manufacturer's one-year limited warranty against manufacturing defects.