Multifunction Waterproof Backpack with USB Port Waterproof 1680D Nylon School Bag for Men Work Travel Flight Business Commuter 15.6" Laptop Black

Specifications: Dimensions are 50*35*25 cm/19.7"*13.7"*9.8"., Multi-layer space: Internal computer compartment + iPad compartment, easy to carry items.The multi-layer zipper bag design of the backpack is convenient for the classification and carrying of various items, and it is convenient to take and place., USB charging interface: The backpack has a built-in charging data cable and an external charging port; the mobile phone can continue to last., Trolley case fixing belt: The back fixing belt can be used with the trolley case. The clever rear panel insert box design allows the weight of the backpack to be handed over to the trolley case, and travel has become easier from now on!, Humanized design: Shoulder strap D-shaped external hanging ring buckle, can hang keys, water cups, etc. S-shaped widening shoulder straps, relieve back pressure, comfortable decompression.