They had small & medium. I had no idea which size to
>get sooo I went for the medium. HOPE they fit!
In the store, they are sold as a pair, with sizing as small (4-5) or medium (6-7) or large (8-9). I can wear either a 5 or a 6 in most underwear. These particular ones say that they are very stretchy (they look small in the package).