The ShelfPack is an efficient suitcase that comes with four built-in shelves, which extend to 42 inches when open. It also comes with sturdy retractable supports to maintain stability. Furthermore, the shelves conveniently drop into the base when you don’t need them. To use the ShelfPack, simply unzip the suitcase, raise the supports and lift the shelves. The ShelfPack also comes with a retractable trolley handle that makes it easy to stow away and fit in smaller spaces.