I am a 5'6 32C adult bra and bought them in XL size and they fit perfectly! Much cheaper than adults, so if you can fit in, why not!?
Thermajane Girl's Cozy and Comfy Thermal Underwear Long Johns Set with Fleece Lining
46 Review
C9 Champion Girls Supersoft Bright Girls' Clothing and Active
46 Review
Hollhoff Gymnastics Playgrounds Shorts - Breathable Clothing for Girls
48 Review
Pack Athletic Performance Basketball Drawstring Girls' Clothing
48 Review
Fancy Girls Communion Dresses White Girls' Clothing in Dresses
53 Review
Amazon Brand Sleeveless Unicorns Metallic Girls' Clothing in Dresses
75 Review
First Communion Dress Line Ivory Girls' Clothing and Dresses
56 Review
Castle Fairy Communion Pageant Bridesmaid Girls' Clothing for Dresses
54 Review