I had a couple like this several years ago
I have been looking for this case for about 5 years. I had a couple like this several years ago, but they finally wore out. If you carry your glasses in a shirt pocket, this one is the best. Note that it is a pocket clip, not a belt clip. There are 3 key features: pocket flap with Velcro closure, hard plastic inner shell, and pocket clip. This one does it all. I like mine so well that I ordered 3 more just to be sure I don't run out. Based on past experience, I think they should last 2 to 4 years each in daily use.
Rating: 5 stars