Pockets on pockets, zippers on flaps, this thing has it all. The JanSport Union Pack backpack is that fully loaded top shelf bag with the padded shoulders and everything. If you're the type with lots of organizing to do, this pack will get it done.. . . . . 15" internal laptop sleeve. Dual water bottle pockets. Adjustable padded shoulder straps. Front utility pocket with organiser. Front zippered stash pocket with quick access flap closure. Top zippered stash pocket. Fully padded back panel. One large main compartment. Webbing handle. Volume: 27L. Dimensions: 16.5" x 12.59" x 5.5". Fabric: 100% Recycled 600 denier polyester. Laptop Sleeve Dimensions: 12.99" x 11" x .78". Weight: 14.1 oz. Imported.