I ordered Sz Small for my 5 year old. It's roomy, which is what I expected as she usually wears a size XS. I erred on the plus side to make sure it would fit. I didn't want a tight sweatshirt dress. This is probably pretty close to the exact size. This is now classed as a dress and while it is actually longer than a standard sweatshirt I would consider it more of a tunic than a dress. The length seems like a decent dress length for my daughter who is 3.5ft but keep in mind this is a size larger than she normally wears. It will look shorter on her once it fits her better. Whatever you call it, it's still cute and pairs well with leggings.
Rainbow Toddler Princess Sleeveless Sundress Girls' Clothing and Dresses
57 Review
UNACOO 2 Pack Sleeveless Cotton Dresses Girls' Clothing
62 Review
Castle Fairy Pageant Wedding Communion Girls' Clothing for Dresses
53 Review
Fancy Girls Communion Dresses White Girls' Clothing in Dresses
53 Review
Tommy Hilfiger Girls Crop White Girls' Clothing
54 Review
Dancina Toddler Leotard Flutter Sleeve Girls' Clothing for Active
55 Review
Pack Athletic Performance Basketball Drawstring Girls' Clothing
48 Review
Thermajane Girl's Cozy and Comfy Thermal Underwear Long Johns Set with Fleece Lining
46 Review