I started using my insoles today and found instant relief from the pain I have been suffering for months!!! I have planter fasciitis in both feet and also suffered from ankle weakness which caused my feet to rotate outwardly and that, in turn, caused knee pain. I didn't walk anymore. I kind of shuffled! My feet hurt so bad that it was painful just to stand. This morning, I went out, my Protalus insoles in hand and purchased two new pair of shoes. When I tried them on in the s tore, I removed the insole that comes with the shoe and replaced it with my Protalus ones. I found moving up 1/2 a size gave my feet the room they needed to be comfortable without being confined. We are in the process of moving back into our house after it flooded back in August and I have been on my feet all day, have gone up and down the stairs countless times and am still going strong!!! I have "Happy Feet!" Thank you! Thank you! Thank you!