Had the same model even before 9 years use without notable mishaps with lock knobs, etc Through daily use of the Exchange, were unfortunately in the old sometime at the seams. As I said 9 years. The new logo design was changed by a technical, and unfortunately the zipper with the trade located at the back. Thus, it only has a lockable compartment (coin pocket with button). No more space for my Heiermann :-(
Conclusion: Robust wallet Camel with lots of storage space for cards and personnel, and other papers.