I have the flak jacket with prescription lenses and am getting another set of frames. I popped out the lenses and it was pretty easy but putting them back in was a bit harder. I don't want to put too much stress on the lenses when popping them back in, afraid I might break those little tabs on the corner. The regular lens that came with the frame seems easier to pop in, the prescription lenses are thicker and took a bit more force. I know they're shatter proof but maybe I'm just a little paranoid here lol Anybody actually broke those tabs on the lens before?