Girls ankle socks are hard to come by.  Don't know why but was very happy to locate some right here on Amazon!  Daughter is thrilled with them and after washing and getting them to shrink down a bit they fit much better.  She wears a size 5-1/2 narrow shoe so keep that in mind when purchasing.  The heel does go up her foot a bit so the size large would probably fit size 6 or 7 better.  All-in-all really nice socks.