Little Urban Apparel sizing is based on your child's height. The style of their clothing tends to be loose or stretch so weight is usually insignificant to the fit of their clothes. Please refer to the below height to age information to best determine your little one's size.
3-6M: 22" - 25"
6-12M: 26" - 29"
1T: 30" - 34"
2/3T: 35" - 39"
4/5T: 40"- 43"
6/7T: 44"- 48"