The mailbag backpack is made of organic cotton and 100% vegetable tanned leather. The bag is worn by the adjustable shoulder strap. The format is suitable for your free time, shopping and also work, as it can store a large folder and a notebook (13-14″) in a separate padded compartment. By folding up the clasp, the volume of the bag can be extended. Through a Loxx-button the bag also stays closed when the clasp is opened. Opening the zips on the side gives you a good view inside and ensures easy accessibility to the content of the bag. Both of the outter zippered pockets are very handy and spacious, one on the front and one on the back each, in which wallet, mobile phone, keys, diary and other personal accessories can be stored.