PackIt Freezable Lunch Bag with Zip Closure, Batik Ombre This lunch bag features PackIt's patented cooling technology. Freezable gel is permanently built into the bag, so you will never waste money on separate ice packs or gel packs again! To use, simply fold the PackIt Lunch Bag flat and store in the freezer overnight (12 hours). In the morning, the walls of the lunch bag will be completely frozen and ready to chill food and drinks for hours PackIt lunch bags are perfect for packing healthy foods such as: dairy, fruits and veggies. Food and drinks stay cool and fresh all day! Its ideal for people with special diets, food sensitivities or allergies The Lunch Bag features a zip top closure to lock in cool, dry air. A buckle handle clips onto totes, backpacks and strollers for hands-free convenience Proudly made by PackIt: creator of the ORIGINAL foldable, freezable lunch bag. Designed in California