This is my second pair of Ryka Devotion shoes and I will definitely purchase a third when these wear out. As a daily walker, either outside or on the treadmill, I have found these shoes to be the best that I have owned. They are supportive, comfortable, and true to size. I sometimes find that other athletic shoes have an arch that is too high, causing foot pain. These shoes have a supportive yet comfortable arch, the heels do not rub or slip. Great shoes!