You may want to get the next size up from normal shoe size to give the child a bit of room to grow.
The exact size will be a snug fit and will be outgrown rapidly. A snug fit may be what you want so plan accordingly.
Seamless Nude Leotard Dress with Transition Straps for Women and Girls by DANSHOW
33 Review
Toddler Girls' Gymnastics/Dance Leotard By DANSHOW - Long Sleeve Basic Team Style
34 Review
DanShow Flutter Sleeve Petal Skirt Ballet Dance Leotards For Girls With Bowknot Back β Perfect For Performances
26 Review
Girls' Cotton Ballet Leotard Tutu Skirted Dress With Front Lining - Perfect For Dance
11 Review
Amazon Essentials Little Short Sleeve Leotard Girls' Clothing for Active
61 Review
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
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Pack Athletic Performance Basketball Drawstring Girls' Clothing
48 Review