Although ECCO only make shoes in size D, they run a bit roomy which is good for those of us with wide feet. I usually take shoes one size larger than usual to give me the extra width I need. I love how the shoe looks and feels on my feet. I wear them all the time as my main work shoes. They also make great airport shoes as you can pass through the TSA without worrying about laces. My only complaint is that if my dog eats a few, they are expensive to replace. Such are the joys of dog breeding.