PackIt is the first freezable lunch bag that keeps anything you pack cooler, longer. Each PackIt has a patented freezable gel built permanently into its lining and the entire bag freezes to keep contents cool. The gel-lined walls chill a meal and 12 ounce (340ml) drink for up to 10 hours. (Depending on external temperatures). While other bags merely insulate, a frozen PackIt actually creates cold, eliminating the need for melting ice or bulky gel packs. PackIt keeps food cooler five times longer than other coolers which allows you to pack healthy foods such as: yogurt, milk, fruits and veggies. 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 (12 hours) to freeze completely for maximum performance during use. The new zip closure locks in cold, dry air and a buckle handle easily clip onto totes, backpacks or strollers. PackIt products are made from food-safe, nontoxic poly canvas and are PVC, BPA, phthalate and lead free.