I've bought the swimming diaper from this brand and have loved it. Thinking that since my baby is older for a diaper, I bought him a pair of these, yet he was only able to wear it just once. It was extremely tight around the waist, runs low which I could see his butt (luckily the rash guard covered). He is a tall kid 33 inches, 30 bs and  usually wears a size 3 in clothes. I bought him a size 3 in these.