Expandable Capacity Business Backpack with Laptop Compartment: This Travel Backpacks transforms from a sleek 27.5-liter work backpack to a spacious 36.5-liter large backpack, providing full access to the interior for all your essentials. Waterproof material: laptop backpack made of high-quality nylon not only waterproof and resistant but also scratch-resistant. 180° opening pocket:The front pocket can be use fit casual shoes,sky ,kettle,umbrella,Magazine and Other goods,the backpack have 5 pocket,the main pocket can contain 4-5 chothes，the laptop pocket can 180°opening can hold 17 inch laptop and the pocket division reasonable can meet your daily needs,Two front pocket can meet your daily needs,You can place anything you have to have any items, such as wallet, pen, convenient sign, etc. Best Tavel Backpack:Backpack fits for 17.3 inch laptop 11 inch Ipad. The YKK zipper and high-quality nylon can prevent raining from outside. It is convenient for you to travel in business. Human design:TSA-Ready laptop backpack have USB charging port system , It allows you to make electronic devices more convenient to charge. Multi-function shoulder strap with chest belt system, and have glasses hang hook, so that free your hands and on need to put the glasses into any pocket, you can hang the glasses on the shoulder strap,luggage strap let you be convenient of your travel. Breathable & Comfortable :Back side and shoulder straps come with breathable sponge mesh design, help you stay away from sweaty. Adjustable shoulder straps keep the backpack fixed on your body and offer your great back support. Also a simple and curved design top soft handle makes it a carry-on bag. Laptop BacLaptop Backpack,Business Backpack waterproof fit 17.3 inch Laptop,TSA-Ready packkpack,Business Backpack waterproof fit 15.6 inch Laptop,TSA-Ready pack