A large leather backpack on wide shoulder straps, seven pockets, is tightened with a leather cord, on top of the valve. In a large pocket can fit a book, the rest can be folded phones, documents, keys and other trifles. In the backpack, if you want, you can put a watermelon. The straps are adjustable in length so that the backpack can be worn by people of different sexes, age, height and build.