These shoes are excellent. I have tried all of the comfort brands, and Earth is the best I have found. When you get them out of the box, you have to give them a chance. At first I thought they were too narrow and tight. The leather straps actually relax a bit after you take about 20 steps. You can feel the difference in your calf muscles when you walk. It does help my posture when standing. I'm going to have trouble wearing other shoes now, these are so fantastic. I highly recommend them.