✈【FUNCTIONAL DESIGN】Laptop backpack offers a convenient on-the-go access to portable power, with USB charging port outside and a set-in charging cable. Great for charging your phone or other electronic devices while walking. (Please note that the power bank is not included in this USB laptop backpack) And the headphone interface is a easy access to your earphone usage. And lay-flat design is for easily organized and get your items via opening up to 180 degree when through the airport security. | ✈【LARGE CAPACITY & MULTIPLE POCKETS】External dimensions: 14.1*8.3*18.5 Inches(L*W*H). Capacity: 45 L. 2 main padded compartments with dual zipper fit for 15.6, 17 and up to 17.3 inch laptop.(Since the laptops' appearance of different brands is different, this backpack is suitable for most 17.3-inch computers, but if laptops' form is too large, it may not be suitable.) More than 15 functional pockets ensure you to keep your personal belongings well-organized and get them easily whenever you need. | ✈【DURABLE MATERIAL】17 inch computer backpack is made of waterproof and high-quality polyester fabric. This college school backpack features a double-sided smooth zip and reinforced stitching for durability. It provides more secure and protection for your items in the rainy days. Dual metal zippers are designed for your daily commute. Serve well as a durable travel backpack for men. And Breathable mesh back is perfect for comfortable carrying. | ✈【COMFORTABLE CARRYON】1 smart luggage sleeve helps to free your hands and back when travelling. You can hold this business backpack by sliding through the trunk’s handle tube for easy travel. Anti-theft zipper pocket on the back is to keep your valuable items safe. Easy card zipper pocket offers a easy access to your keys, cards an coins. And a small sleeve on the shoulder strap of rucksack is designed for packing your sunglasses. | ✈【MULTIPURPOSE BACKPACK】This mens backpack can be used as a laptop backpack, 17-inch portable backpack, college backpack, high school student backpack, travel backpack, weekend bag, overnight trip backpack, business laptop,backpack for men and women, personal carry on for adults. This practical extra large laptop backpack is ready for anywhere. And it is a ideal present for teenager boys back to school.