I have to wear heels a lot for my job attire. After awhile my shoes will stretch and then they will not stay on very well making it painful on my heel as they slip. It also makes me walk differently to adjust for the fact the shoes are slipping. These heel gribs are fantastic. They stay in place very well and make it so I don't have any more issues with my shoes. I will be buying more to go in more pairs of shoes. Really wish I would have found these earlier.