I got this suit in a size 2T for my 20month old son for "winter time" in Hawaii. He likes to go surf with his dad, so it has been perfect. He doesn't mind wearing it all afternoon in the water or on the beach running around. It fits a tiny bit big for my 25 pound boy, but he will grow into it soon. The suit is easy to rinse afterwards. The zipper works really smooth, he doesn't act like it irritates his skin at all.