Fits a little tight for my 21 month old, around the waist. She is average weight, if not under. But it's very cute. It has silver accents that you can't see in the picture, so it's much prettier in person. Wish that it had a bit more stretch, because it's a little difficult to put on her, and wish it didn't hang so low on her in the chest area. But that may be due to the fact that I bought her a 3T when she is more of a 2T size right now. For now, I just put a onesie on underneath. It would also be more convenient if it had snaps at the bottom for easy diaper changing, but it doesn't. Bought a similar romper from the same seller and I like them both.