Received these shoes in the mail today and was so sad that the heel was too large for my heel. I wear a size 8 1/2 medium and was pleased with the arch support and the length of the shoe was perfect. When I started to walk in them, my heels were slipping in the shoes and I felt I was about to step out of them. I really would have liked to have kept these shoes because they are well made and very stylish. This does not fit someone with narrow heels.