Looking for a lunch box that adapts to your schedule and appetite? Lightweight and durable, Maelstrom is made from waterproof nylon, featuring PEVA insulation and airtight ultrasonic welding to keep food hot or cold for up to 16 hours. The expandable upper compartment adds extra space for snacks, drinks, or fruit—offering a total capacity of 6.08 gallons! Built-in pockets take care of everything, from napkins and utensils to a water bottle or keys. With a reinforced frame and SBS zipper, this two-tier cooler will never let you down, whether you're at the office, in the park, or on the go