Bought these for my 10 year old who wears a size 10. They fit her but they are a tad too big in the straps. I have to pull down the back in order to cover her chest and make the straps tighter. Eventually I will just cut them and sew them to her size. Not ideal for a little girl her size who is starting to come into her adult body. Maybe she can wear these as undershirts in the fall/winter.