"This costume is ridiculously cute! I purchased the 18 month - 24 month size. My toddler is 27 lbs and about 32 1/2'' tall. I was worried about the undershirt being too small b/c of other reviews I read, but I think it is suppose to be fitted so that the vest looks appropriate. Unlike other costumes, this one is easy for my Toddler to wear and move in. The fishing pole prop is great b/c it is all soft. The fish on the end can be compared to laminated photo copy of real fish, so they appear lifelike."