I have severe arthritis in my knees (bone on bone), and bought these sandals 2 years ago. They give me more relief than any other shoe I've tried. Something about the curve of them--unlike any of the other "look alike" brands that are out there--takes all the pressure off my joints. I've since had knee replacement on one of my knees, and these are still my favorite shoes. My only gripe is that the heel strap is too long (maybe it's stretched out over time), but that's pretty minor. I've heard that this particular style has been discontinued, and I hope that's wrong, because I'm going to need another pair soon!