Once the seller clarified the above, we were able to get it installed properly; paperwork problem! If you are thicker in the middle, it will take you about a month to see results. I wish there was a slight bump in the front so I dont have to search to see where the front is to open it. My first pair has lasted 4 summers, and I wanted to replace them, so this is my second pair. I have very good luck with shoes that I order which fit. I have silver and love my new gift! I couldnt do more than 20 minutes without taking it off for a rest. The light is bright, and worked right out of the package. They fit fine, but they are not comfortable at all. Product sucks!