Over the last year to 18 months we have purchased three of the Black Pentax sling bags (in the thirty some dollar range) On the bag my wife used the zipper on the bottom section broke and the local shoemaker told her it is an usual zipper but he could fix it for her if she got the right tab (I think that is the name for it). Her inquiry to Pentax has gone unanwered. Can you find out who manufactured the bag for Pentax so we can contact them for the zipper pull tab? The bags are great and sure can hold lots but with the zipper not closing you can put more in but it just does not stay put