I couldn't wear them for sizing issues...I'm a 7.5-8 depending on the type of shoe. I tried the small and medium, but the small were much too small and the mediums a tad too long and WAAAAAAAAAY too wide. My foot is slightly on the narrow side, but not to the extent that I can't normally wear a medium width shoe. When I tried them on there was actually someone from the company at the LBS and she said that they don't work too well for skinnier feet.