This is a set of two items. I wore them a few times at the beach and pool. They fit from around 10 months old to about 2 years old. At 2 years old, the little tummy would poke out and it was cute. The bottom pants were a little big for the top, so I hardly used them. It's a T-shirt type, so it's good as a rash guard and for sun protection. The tags have been cut off. Thank you.