Amazon.com: YGSNTG Travel Backpack for Women, 52L Carry On 。?Large Capacity: The travel laptop backpack comes in two sizes: L (17\"x12.6\"x8\"), weighing 1.5 lb, with a 28 L capacity, and XL (20\"x13.7\"x11\"), 2.2 lb, 40 L capacity, expandable to 48 L; This backpack for travel offers a large capacity with dedicated spaces for your laptop, books, wallet, clothing,and other essentials; The multi-pocket design ensures that your items are organized and easily accessible ?Ergonomic Design: Crafted from durable 600D dulling twill, this suitcase backpack features a waterproof outer layer and breathable mesh back with sponge shoulder straps to relieve shoulder pressure; The waist buckle provides added stability, while the extended adjusting straps on the shoulder pads make it easy to customize the fit; The thickened sponge lining in the laptop compartment protects against collisions, making it a perfect choice for both women\'s business trips and men\'s laptop storage ?Convenience Design: This large travel backpack comes with a 180-degree zipper opening, facilitating quick passage through airport security; Luggage backpack compact design is suitable for overhead compartments and under-seat storage, making your travel experience seamless and hassle-free ?Multifunctional Use: Whether you need a handbag or a backpack, this big backpack is suitable for both uses; It can be used as a duffel bag, travel backpacks, teacher\'s bag or nurse\'s bag, mommy bag, gym bag, carry on bag; It is ideal for weekends, traveling, college or daily work, and it is