LOTS OF STORAGE SPACE&POCKETS: One separate laptop compartment hold 15.6 Inch Laptop as well as 15 Inch,14 Inch and 13 Inch Macbook/Laptop. One spacious packing compartment roomy for daily necessities,tech electronics accessories. Front compartment with many pockets, pen pockets and key fob hook, make your items organized and easier to find FUNCTIONAL&SAFE: A luggage strap allows travel laptop bag fit on luggage/suitcase, slide over the luggage upright handle tube for easier carrying. Tighten the breast strap can stabilized the center of the gravity of the backpack. A small anti-theft pocket located on the lower back keeps your passport, wallet, phone and other valuable items safe and handy. Internal shockproof belt for fastening your laptop and iPad, preventing them from sliding and bumping USB PORT DESIGN: With built in USB charger outside and built in charging cable inside,this usb backpack offers you a more convenient way to charge your phone while walking. Please noted that this backpack doesn't power itself, usb charging port only offers an easy access to charge