1. Large Size: 12.4"x6.7"x17.3"inch, weight:1.5LB, The main room with padded compartment sleeve can hold laptop up to 15.6 inches . The front pocket comes with reflective strips and webbing, makes the bags more fashionable and unique. | 2.Durable Material: The Big Backpack is made of durable and high quality water resistant polyester that provides extra strength and long-lasting performance with the lightest weight .The metal zippers closure are used by the premium quality zippers to ensure the long-lasting usage. | 3. Lots of Pockets: There are 5 front zipper pockets, 2 side mesh pockets, 1 big zippered middle layer pocket with a lot of internal compartments and 1 large main room with dedicated Laptop compartment, also it comes with 2 small open pockts, you can organize your things more easily. | 4. Comfortable: The considerate belt on the both side can create a solid base of support if you’re packing a lot of stuffs on the back packs. The Widen and thicken durable S-shape straps is well-padded, adjustable and comfortable to carry. The luggage belt on the back can be fitted on luggage/suitcase to make your travel more convenience. | 5. Fashion Multi Pockets design: Casual style backpack Fitness for daily use , also it is great bag for traveling, outdoor, shopping, work and outdoor activities...