The Arctic Zone® High Performance Ultimate Expandable Lunch Pack provides double the capacity when expanded* and includes a 2 piece leak proof container and high performance ice pack. The interior features SuperFoam® insulation with Therma-Flect® radiant barrier to keep food and drinks cold and an Ultra Safe® leak proof** lining with Microban® to help protect against bacteria that causes odors and stains and make the lining easier to clean. Designed to be carried vertically or horizontally, the pack has 2 padded handles and a removable, adjustable shoulder strap. One of the handles includes an attachable Swing Clip™ that clips onto backpacks. Great for school, the office, lunch in the park. *approximately **Zipper is not leak proof