I've tried 3 or 4 different portable reading glasses including ones that fit in a case that looks like a Zippo lighter. They all add up in their own way. The main difference is how portable they are in a pocket, at least for me. The Zippo case is fine, but the goggles themselves were a bit flimsy; the other suitcase was too bulky, more than necessary. I had some doubts about them because they don't add up in length. Instead, they are folded so that the "handles" (frames) cover the lenses and fit into a slim case that fits easily in a pocket. The swivel mechanism is a clever idea and the frames are solid. There is also a pocket clip but it seemed useless to me. I actually removed it with a small screwdriver to allow the glasses to fit in the case in some way, not just one. These are now my favorite wearable reading glasses.
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