I first got my daughter this shirt for a girly girl version of a Stewie Griffin outfit. Lol! It fits great. Shes 6 months from being 4 years old. 50th percentile in height and weight. I got her the 4t. It fits great with enough room to allow growth over the next year. If anyone wants good tutus to go with I get all her tutus from Buenos Ninos here on amazon. Shes got about 20 of them and several  of these shirts to match.