I am size 4 and wear youth size (boys) 2 1/2. So I got this medium sock but it was too small. It was very comfortable and slipped off when I walked in it. In my opinion there is a significant size difference between medium and large. So I asked the seller if I could return/exchange the socks and they helped me a lot. So far, the plus size fits well on the foot. I hope these photos help girls with small feet.
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