I ordered 9-10. My daughter wears a 7 (but 6 in pants because she has a small waist). So I ordered more because they are leggings. They definitely fit like a 6. And they're hard to put on because they're almost too tight.
Hollhoff Gymnastics Playgrounds Shorts - Breathable Clothing for Girls
48 Review
Eocom Pairs Childrens Winter Animal Girls' Clothing
64 Review
Amazon Essentials Little Short Sleeve Leotard Girls' Clothing for Active
61 Review
Pack Athletic Performance Basketball Drawstring Girls' Clothing
48 Review