Amazon.com: SHRRADOO Extra Large 50L Travel Laptop Backpack 。?LARGE CAPACITY AND ORGANIZED: men travel backpack owns 20 independent pockets for storing large items and organizing small items. 3 spacious main multi compartments with many hidden pockets can accommodate lots of stuffs like college supplies, travel accessories, clothes, stationery, notebook, cord organizer, side deep Zipper pocket for Easy access essentials, side Elastic net pockets conveniently hold travel gear umbrellas or water bottles ?CONVENIENT AND MULTIPURPOSE: The external USB port with built-in charging cable provides convenience for charging phone. There is a password lock device to protect the security of the computer, and the backpack is equipped with a sturdy handle. Unfold the oversize backpack freely by 90-180 degrees, designed specifically for airplane travel. A large backpack is perfect for indoor/outdoor activities. A large laptop university bag that you can use anywhere for travel, camping, hiking, and trip ?COMFORTABLES: A technology backpack with a U-shaped three-dimensional ventilation design on the back, comfortable wide breathable mesh shoulder straps, and ample sponge pads help relieve shoulder