For this price, the bag is more than adequate. One can store a large number of A4 documents wrinkle free it without any problems. Only with thick books, lunch boxes or pencil cases one must then slowly start thinking about a packaging system. In the back part of the bag can be well padded push a 15-inch laptop, of course, at the expense of the storage space. In short storms of Contents remain dry, only the bag should then be dried. For quality: The interior is that good water repellent in a kind of polyester material, should there still runs what. The magnetic buttons to close the About litter are negligible because they do not really deliver what I also do not feel as disturbing as the pocket also as to remain and the interior of the bag has a smooth zipper. As a really qualitative disadvantage I feel the strap of gradually adjusted in heavier bag contents, and the metal eyelets the around 90 ° cross from longitudinal twist to the bag and the strap also twisted and at the latest when re-adjusting the belt will quickly become annoying. Conclusion: For little money a simple but well-protected pocket. Not suitable for a hectic day, there may need to be readjusted.