Features Nylon Removable, collapsible frame means this bag can convert from a rolling luggage bag to a backpack in 3 easy steps Removable, adjustable, breathable backpack straps with sternum strap Large external front zippered pocket for organization Interior zippered mesh pockets for organization Top zippered pocket with key fob Description The ultra-light, international carry-on Eagle Creek EC Lync System 20" convertible luggage completely collapses and the frame dissembles for easy storage in small stuff sac. It has backpack straps so you can remove the frame or wear it as a wheeled backpack.