The First collapsible hard-shell, a luxury carry-on made of durable polycarbonate, the Flex Aura provides more than 10 gallons of packing volume and weighs only 5.3 lbs. Ideal for international or domestic travel. Folds flat to 2"", No longer will you need to take up space with an empty bag in your hotel room, you can hang it in the closet or stow it away under your bed.