This fully freezable Lunch Box is the first and only lunchbox with PackIt's groundbreaking built-in cooling. Freezable non-toxic gel is built permanently into the walls of each bag, to keep food and drinks chilled for hours. It totally eliminates the need for separate blue ice packs or gel packs! • Simple to use: empty, collapse and freeze the entire lunchbox overnight (12 hours). By morning, the walls of the bag will be completely frozen and ready to chill. This lunchbox keeps food cooler longer, which means you can pack healthier foods that would spoil in other lunch boxes such as: dairy, deli meats, salads, fruits and veggies • Large zip opening allows for faster top-load packing and locks in cool, dry air. A buckle handle conveniently lets you attach this lunch box to backpacks, messenger bags, sports bags and more. An exterior zip pocket stores lunchbox notes, ID cards, napkins or wipes • This lunch box is made from nontoxic gel and gel liner. • PackIt's Classic Freezable Lunch Box measures 8.25 inches tall standing upright, 10 inches wide from side to side and 4.25 inches front to back/deep. Easy to clean: interior wipes clean, spot clean exterior