To use, fold the PackIt Freezable Lunch bag flat and store it in the freezer overnight (12 hours). In the morning, the walls of the lunch bag will be completely frozen and ready to chill items for hours. PackIt Lunch Bags chill food all day, letting you pack healthy foods that would spoil in other bags such as: yogurt, deli meat, milk, fruits and veggies. The cooling power lasts long enough to bring home leftovers, which reduces waste and saves you money. Specs Gel-lined walls chill a meal and a 12oz (340ml) drink for hours (depending on external temperatures) Wider base fits a Mod Lunch Bento™ and Mod Snack Bento™ container Folds flat and freezes overnight Buckle handle clips onto totes and strollers Zip closure locks in cool, dry air Made from nontoxic poly canvas;food-safe lining PVC-, BPA-, phthalate- and lead-free Interior wipes clean; spot clean exterior Proudly made by PackIt: creator of the ORIGINAL foldable, freezable lunch bag. Designed in California Open: 9.75"H x 8.5"W x 6.25"D Folded: 5.25"H x 8.5"W x 3"D