My 8 y-o who is chubby (wears either a size 12 or a 14-16 girls in US sizing) fit in the 13-14 y-o size really well.
She’s a little on the shorter side and is apple-shaped.
Sparkly Gymnastic Leotard For Girls With Shiny Diamond Detailing - Perfect For Ballet And Dance Performances
6 Review
Gradient Shiny Diamond Gymnastics Leotard For Girls - BAOHULU Dance One Piece Outfit
4 Review
BAOHULU Girls Gymnastics Leotard: Shiny Embroidery Activewear For Kids & Children
14 Review
Comfortable And Stylish Gymnastic Leotard For Girls With Matching Scrunchie
6 Review