The backpack is made of quality non-waterproof nylon. The backpack is very convenient to use thanks to a variety of compartments. Front on the backpack is a large pocket with a zipper. On the side on the same side is another pocket in the whole backpack with a zipper. Next, open the first part of the backpack. It can be decomposed as a book if desired. There is a small pocket with a zipper and a large compartment with elastic bands for convenient fastening of contents. The next compartment of the backpack is separate, it opens with a double zipper there are two large compartments, one of them with velcro. With unaccustomed you can and get confused in them. The backpack has an output for usb wire. the handle of the backpack is reinforced dense reliable. Conveniently lies in the hand. Straps with breathable mesh, dense and soft in addition very wide. The straps can be adjusted according to your length. Inside the backpack everywhere dense foam inserts. Quality is just super! I recommend.