I came across the Protalus insoles on FaceBook. I have had issues with my feet hurting for most of my life but had not sought out any but the most rudimentary of insoles to correct this issue. I figured, "What the heck. I'll try them." Well, let me tell you. This is the solution to my problem. I primarily chose them for the exercise routine I attend with Jazzercise. I also bought a new pair of shoes with a wider stance. I would advise anyone buying these that they do take up some space in the shoe. You may want to experiment with a half size or more larger than what you'd ordinarily purchase. I did not do that so I will be facing a longer "wear in" period. I have recommended these inserts to a few of my Jazzercise friends and have not heard back yet, but if their experience is anything like mine, I'm positive they will love them.