I bought this shoe in black being that I needed a new pair of black pumps. I found that a size 6 1/2 works for me.I wear a 6 1/2M or a size 7M. But always a pump in 6 1/2 when wearing silk nylons, pumps tend not to slip off the back of my feet. I receive lots of looks and compliments wearing this pump. So sexy and stylish and the men really pay close attention. These sexy pumps make the legs look even better and more sexy. Thanks Zappos again for a great shoe selection and fast delivery!