They seem to do the job
"I put these through a challenging trail run just to get them flexing under rocks to see if they were worthy. I think they are. Right out of the box compared to stock inserts they are very well made and purpose built. It comes with a little half moon puck that I think goes under the insole to provide more support but I left them out. During the run my feet felt great. After they felt great as well with no pain. I don't have a bunch of foot pain generally but I do feel like these would help. My personal opinion would be if you have foot pain to get your gait and feet analyzed and get shoes that are fit for you. Then you can throw these in if your still getting pain. I think that combination is going to make running more enjoyable. With that said, these feel similar to the superfeet running support for me. I think you also need to test them out to see which one is best for your foot."