i wear an 8 in flats and a 7.5 in heels. i went with the 8 and they were fine. some people say they run a little small but if i sized up, i would have been falling out of them. the quilted tip is a bit tight at first, but it stretches out. i have the black on black and the navy on white. SM stores have a few of the styles on sale right now, i believe.