Lucifer

Semi-related question: I'm planning on making myself a basic shoulder bag and part of the design I'm planning on, is to have a zippered back pocket for air-plane tickets and a passport. Suggestions on solid zippers for such use? preferably a brass colored one, since I'll be using brass hardware other places. (Or, are saddleback right in their claim that a zipper will never hold up to enough abuse and should be excluded?)