I purchased these socks to wear with ballet flats.  They definitely serve their purpose and I will continue to wear them on a regular basis.  However, they almost always show and require adjustment throughout the day.  I wear a size 7 shoe and purchased the Small/Medium size, and they seem like they are just a little too big.  The patch at the heal helps keep this sock from slipping off of the heal, but I am concerned with how well it will hold up after a couple of washes.  Also the 'Cream' color is more 'Nude' and the 'Tan' color is much darker.