I wear a size 11 and have a narrow heel. I usually cannot buy pumps or flats because they are too wide at the heel and cause a tripping or fall risk. This style, with its Mary Jane elastic strap, will help solve that issue. I have flat feet and the elastic strap is about 1/2 inch too long for my instep, but because the straps are elastic fabric (not leather or vinyl), I will be able to sew a small tuck to tighten and adjust the straps and customize them to my instep. That is the exact reason why I purchased these over other Mary Janes, because I knew I could alter the strap. They will look great with dressy or casual styles and will give me the stability under foot that I need!