PackIt bags are changing the way we eat on the go. The revolutionary bags are designed with gel walls that freeze and they fold flat to fit perfectly in the freezer. Once the walls have frozen simply pack and go! Not only are they designed to keep your food and drink cold for hours, but they can also chill items that are at room temperature. No ice packs needed. Entire bag freezes. Collapsible to fit in the freezer. Fantastic for your weekly shop, keeping all your frozen items cold as ice until you get home. Also great for picnics and festivals.