I run a granite gear case also, it seems to be of a similar design to the piece that is mentioned above. It is also true that I refold multiple times during the day and run the "lake finder" maps in ziplock style bags inside the case. I also add notations in sharpie to the Fisher and Voyager maps as it strikes me. I believe the GG case is somewhere around 15-18 years old, no construction issue except i did replace 1 of the cam style buckles in the last couple of years went 1 of the rention tabs on the plastic buckle finally gave out. It has 100's of days in trips on it , most likely 1000's. Not sure if they are still the same but I would do it again. It's hard to loss something purple I might add, and the price was right to boot. Oh if that map case could talk!