The Gomatic Navigator Backpack 15L is built to hold only what is most essential, but capable to give you expansion when you need the space. In the main compartment you’ll have more room than you might think, 5 mesh pockets, and two zipper pockets including an RFID safe pocket. The Navigator Backpack 15L also has a laptop and tablet pocket, with a dividing wall and false bottom to protect your devices. The outside of the bag features water resistant, tamper proof zips for protection and security, as well as reflective bars for visibility in the dark. When you are on the move, the external carry straps help you carry that one last thing. You get two external quick access pockets and a water bottle pocket that hides away when not in use. One external pocket features a hidden compartment for items you might want to conceal. While traveling you can easily slide the bag onto your roller luggage transforming this into the perfect carry-on. All around this backpack is extremely comfortable, versatile, and ready for any adventure •15L TO 21L EXPANSION •DURABLE/WATER RESISTANT •HIDDEN WATER BOTTLE POCKET •LAPTOP & TABLET STORAGE •TAMPER RESISTANT ZIPPERS •TECH ORGANIZATION