EXPANDABLE! Expands to carry-on luggage size to hold your items for travel but compacts small enough to be a great laptop or light travel backpack Interior includes 1 Large Mesh Pocket and 2 Medium Zipper Pockets, and exterior has 2 Front Zippered Pockets, 2 Expandable Side Zippers Built in laptop and tablet compartments, with USB and charging cable port for your technology. (Battery not Included) DIMENSIONS: Expanded; 20” x 13” x 12”, Collapsed; 20” x 13” x 5” Water-repellent ergonomic nylon design and padded shoulder straps and plenty of storage Used a few times but in excellent condition