Specifications:Material: Polyester fabric, soft, comfortable, durable and lightweight.Size: 16.9"x11"x6.3"; Weight:1Lb.Closure: Smooth zippers,easy to close and open.Instructure:Main compartment can put book, notebooks, binds, A4 files.Laptop sleeve can fit 14 inch Laptop.You can easy get your key from keychain.Multi-pocket: your stuff can be placed more scientifically and orderly.Front zip pocket can provide a quick access to small item such as wallet, keys etc.2 side pockets can hold water bottle or umbrella.Features:Breathable mesh back cushion, effectively relieve back pressure to extremely comfortable.adjustable shoulder straps for comfortable to carry.Multipurpose: Can be used as a laptop backpack, student backpack, school bookbag, travel backpack, casual daypack. Great value gifts for teens, students and adult.