so the sole is good. These are fine for casual use, if you plan on running over a mile a day these are a no go. Cute comfy heels , I had trouble with the zipper pulling it down and up. came home and "fixed" it, I had contacted them for a replacement. The bottoms stick to hard floors a bit, but that should wear off when broken in. Totally worth the price! In my option the MW65 combines beauty, material, performance and technology just perfectly. However had a slippery bottom and they broke after a week of wear. Me gusta mucho esta marca y la variedad de colores. The default display when you press the touch screen is the temperature, but really it should be the timer since its unlikely that people will want to change the temperature more than the time to leave the unit running.