Is that sandwich still food safe? This freezable lunch bag removes the worry and keeps your food cool. Pop it in the freezer overnight and the gel will work like a mini-fridge for hours after. Built-in freezable gel keeps items cool for hours (depending on external temperatures and how often the bag is opened). Fits a sandwich, snack and a 340ml drink. Collapsible design fits in crowded freezers. Folded dimensions: 5 x 12.5 x 5cm. Secure zipper closure helps keep cold in. Buckle handle is easy to carry, or clip onto the side of packs.