Specs: Material: High quality waterproof oxford Size: 18.1"x12.6"x4.3" Expand to 18.1"x12.6"x6.3"; fits 17.3" laptop Weight: 2.3pounds Features: ❤️Large Capacity and Organized: Large laptop backpack owns 13 independent pockets can accommodate lots of stuff like college supplies, travel accessories, clothes, stationery, notebook, card organizer ❤️Material: The laptop backpack is made of good environment-friendly oxford fabric with new function of water-repellent, which is quite durable ❤️USB Port: Built-in USB PORT is convenient to charge your cell phone by the connected power bank (POWER BANK is not included). ❤️Comfortable: This practical backpack with a foam padded top handle for long-time carry on. Comfortable back design with thick but soft multi-panel ventilated padding, gives you maximum back support. Breathable padding shoulder straps for a more comfortable fit, relieve the stress of shoulder ❤️Functional: A well-knit luggage strap allows backpack fit on luggage/suitcase, slide over the luggage upright handle tube for easier carrying, making your journey more convenient wherever you go. Its Humanized design makes it can be used at business trip, daily work, school, college, occasional travel and so on Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-2cm measuring deviation due to manual measurement.