"these have been a life saver-they feel a bit like those stretchy goo toys you throw on a wall and they slide/walk down it? but thicker and not goo. I don't see these things flattening or deflating anytime soon like a cushioned insole. My heels felt like they were going to shatter when i walked on them- i work on my feet and needed relief, insoles moved around and wouldnt sit right. these mostly stay put in a normal fast walking pace and stay on my feet when i take off my shoes or just want to walk around the house in my socks or barefoot :) i am going to buy more."