I ordered this for Christmas and they sent me the wrong size. I immediately initiated a return and AGAIN they sent the wrong size. I wanted a 12-18 month old but they sent me a 9-12 month old for my 15 month old boy (wearing in tops 18 month old overalls or 24 month old t-shirts and bottoms might fit a 12 month old old but I prefer to buy 18 months for growth). Running out of time I had to settle for the wrong size and it fit him (sleeves rolled up) but there was no room for growth which sucks…