I bought them in pink and silver to go with more of my current wardrobe, and they are so sleek and stylish.  I love them and so do my feet.  What I like best is that they don't look like toning shoes, but I can sure feel that they are.  Mostly I just wear them for short periods when I go out walking and they do great.  I can't really tell that they are toning shoes unless I'm walking uphill, then I can really tell that I have to push-off more in my steps.  Also, when I wear them all day, either around the house or out shopping, I can feel it in my calf muscles.  They are more tired at the end of the day.  To summarize --  these are very cute and very comfortable and I do notice the toning effect.