Spacious Laptop CompartmentThe independent cotton-padded computer compartment can accommodate a 17-inch laptop, effectively buffering impact and protecting the computer from damage; the 30L ultra-large capacity main compartment can easily store daily necessities such as a change of clothes, documents, books, etc, meeting the needs of a day's commuting or short trips ^^ Built-in USB Charging PortThere is a built-in USB charging interface on the side. After connecting the mobile power supply, you can charge mobile phones, tablets and other electronic devices at any time ^^ Water-Resistant & DurableMade of high-quality waterproof nylon fabric, it can effectively resist daily splashes and protect the contents inside from moisture; reinforced stitching and heavy-duty zipper design extend the service life of the backpack and is suitable for long-term use ^^ Organized Storage DesignMulti-layered storage design, the middle compartment can be used to store books, folders and other documents, the front pocket can be used to store mobile phones, keys, headphones and other personal items, and the side mesh pockets can be used to store water cups and umbrellas, keeping all your items in order ^^ ComfortableThickened breathable shoulder straps and back cushioning effectively disperse the weight of the backpack, reduce shoulder pressure, and you will not feel tired after carrying it for a long time; the top handle design is convenient for hand-carrying and is suitable for various travel scenarios