I purchased the 24 month lady bug costume. When it arrived the size was up to 24 months and up to 20 pounds. Since my little girl is 18 months, but over 20 pounds the bodice is too tight. This company does not accept returns, so now I will have to find someone to wear the costume and find us something else  :( The weight is not listed in the product description or sizing chart. The costume is cute and if your little girl is within the weight requirement this would be a good choice since you could add a black long sleeve shirt under the bodice if it is a chilly night.