I had bi-lateral knee replacement earlier this year and am able to walk for exercise again. I was having a hard time finding a shoe that was not causing my knees to swell, which caused me to limp, which caused my hips and back to hurt.  I decided to try this shoe after finding it on the New Balance website as it was shown to control motion.  The shoes have done just what I needed from day one and I'm up to 2 miles a day without any problem. The price was considerably less than the NBC website, too.