Kids4ever Girls Gymnastics Leotards, Mermaid Unicorn Rainbow Tank Leotard with Shorts, Sparkly Dance Ballet Unitard for 3T 4T 5T 6T 7T Kid. Advantages of Our Girls Leotards: Four-way stretch material: easy on and off 3D print with sparkly spots: no fade or shrink or out of shape Wide crotch area: allows the kids to stretch the body during exercise Soft breathable fabric: not see-through, no irritation, no itchy and no scratchy Size Chart of Girls Gymnastics Leotards Outfits: Size 100--Recommend age:3-4 Years--Bust:22.00\"---Total Length:20.28\" Size 110--Recommend age:4-5 Years--Bust:22.83\"---Total Length:21.65\" Size 120--Recommend age:5-6 Years--Bust:23.62\"---Total Length:22.64\" Size 130--Recommend age:6-7 Years--Bust:24.41\"---Total Length:23.62\" Sizes Tips: 1. if your sweet is average for her age, pls follow recommended age sizes 2. if she is a little baby chubby or taller than same age kids, pls choose a size up