bought these for my 6th grade daughter.  I bought a size 0 because she is a 14 Slim in childrens.  They fit great!! However, if your daughter is slim and tall with a little bit of a bootie, I would recommend a size 1.  They do give in a little when she walks.  When you wash them, wash in cold water and hang dry! I am definitely ordering another pair for before the winter is out!