Larger Capacity & Organizer Pockets: Suitable for 17 inch laptop, 20 x 14 x 8 inch provide more space for your needs of business, trip, and travel. 3 MAIN pockets hold Laptop, books, and clothes, suitable for all your daily needs, 9 INNER small pockets, and 2 SEALED SIDE pockets organize your phone, iPad, keys, water bottle, and any other small things USB Port Design: USB charger outside and cable inside, provide an easy way for charging. Wherever or whenever you go, you can charge your phone, Kindle, or any other electronic device while you are walking and traveling. Please note that this backpack doesn't power itself, usb charging port only offers easy access to charge Lightweight & Comfortable Safety & Durable Sturdy Material & Long Lasting