I have plantar fasciitis, and I could not find better walking shoes. I have decided to try this one. I bought black color and 6 size and usually wear 5.5 or 6 size. Unfortunately, I got a blister on my both little toe after one use, I felt good when I wear it the first time, but I guess, they are small or narrow. Now I don't understand should I return it or keep it so it will loose after few uses