This is the best folding reader we have seen, even better than the Calvin Klein CR1 folding reader. The Callaway folding reading scrunches down into a small case that measures only 3" x 1 3/8" x 3/4". The case is much easier to open and close than the Calvin Klein version. More importantly, we do not see any appreciable difference in the quality of the frames, and the Callaway readers are a lot less expensive! Also, many of the Calvin Klein models have tinted lenses, which really is not practical when you are reading in a dark restaurant.