My baby is not even 6 months old and having read the reviews about it not being in proportion I bought the 12 month size. It STILL does not fit!! The legs barely cover his knees, and he is a small baby, 40th percentile in height. Based on other reviews I thought it would be adorable for his winter christening, but after receiving it I went with a traditional christening jumper instead. I highly recommend the Laura Ashley christening jumper with short sleeves and long pants, its really really cute. Do not waste time with this like I did, having a baby at home who has time to waste on making returns??