Support under my foot could not be better for a flat. Stylish, soft, comfortable. My ankles swell following ankle surgery, and closed-toed shoes have been hard to find that look good. My rebuilt ankle will never allow me to wear heels again and part of my ankle motion is missing where bones were fused. So ... back entry zipper is wonderful, if straps can loosen a bit the shoes will even accommodate slight swelling. I found the zipper a bit stiff in moving, but there was nothing but gentle deer-skin leather surrounding my courageous ankle. I bought my normal size. I have a medium width foot with high instep. Hope this is helpful to someone looking for a healthy, feminine, nearly-sexy shoe!