They are just huge! We have 3T and 5T - 3T was huge for my (tall, skinny) 5 year old, my (stocky, average) 2.5 year old just couldn't stop laughing while they tried on 3T because they were so funny. The sizing is gigantic in both width and length - each leg can fit a full child and still have room, and the length is more like cropped pants than shorts/bathing suit. Her waists were fine, only the cut of her legs was completely stupid. Although I liked the material and assembly!