These have been a life saver for my feet. Convers and dress shoes have next to nill when it comes to foot support and comfort. Forget getting some expensive orthopedic inserts from the doctor. Figure out what type of arch you have and get the proper support for your arch.<br />They have held up quite well, as I remove the each time I put them in a different pair of shoes.<br />They are quite a hefty price tag, and I think we are paying more for the ecost of the research, rather than the material it self.