We love the little loop that lets him hook the shirt to his trunks so it won't ride up!
I bought this item for my 9 year old son. He is 67lbs and 52 inches tall. The item size 10 fit alright. I do believe he will outgrow it in a month.
This shirt was bought for my 8 yr old who is in a swim team to keep him warm in cool weather and keep the sun away from his skin on sunny days while practicing. He has an older body glove (exelent) but its ripping. I thought this shirt would be better but I was wrong. It has less spandex, so its a little harder to stretch and its realy short. The quality is good, but not what I expected. =(