Sinhoon Laptop Backpack 16.5 Inch, Travel Backpack Laptop 。?Durable Anti-Theft Travel Bag: This backpack is made of high-quality nylon/Polyester fabric. This is a very durable backpack, anti-theft, high-density waterproof, scratch-resistant, professionally designed with high-density soft, stress-relieving foam for extra comfort. ?Backpack size: 18.1X11.8X6.3 inch (46*30*16CM), laptop compartment size 16 inches,, weight: 2.75 lbs (about 1.25 kg) ?Large compartments: 1 main pocket (16\" laptop pocket/iPad pocket/internal drawbar pocket), 3 front zip pockets, 1 side mesh pocket, 2 small shoulder strap pockets, 1 shoe pocket, hidden zipper shoulder strap ?Versatile Backpack: Hybrid (backpack/duffel bag/shoulder bag/travel bag) conversion. Multiple ways to use. It can be used as an everyday backpack, a roomy college bag, a professional backpack for a laptop or for everyday use, suitable for weekend getaways, occasional international trips, overnight backpack camping and hiking with a large capacity backpack, our products offer an all-in-one system design, so that you can pack for travel, business meetings. ?Breathable elastic material on the back and shoulder straps. Even with a lot of stuff, it makes your journey comfortable, not cumbersome. The sturdy shoulder straps hold your belongings, and the waist belt is adjustable.