The Foldie, the original foldable travel bag, black, new with tags Designed with a compact size, it's perfect to bring along as a "just in case" bag. Plus, after using it, you can effortlessly fold it flat for easy storage, freeing up valuable space in your closet or suitcase. 40L of packing space, expandable bottom, 1.1 lbs, durable, made to last and easy to attach to roller bags with trolley strap, fits under the seat on an airplane.