"it fits my 4 yr old , however, it is just slightly on the small end. He is a skinny little guy and I love the outfit, worth every penny, but he wont be able to wear it after he grows a little bit. he is about 40 inches tall, and it is just a little bit tight when you try to velcro close the back. but he loves it, and is angry we didnt order the man in the yellow hat with it. We may be forced to order the man in yellow hat, however the price jumped $10 between the two days I looked for it. but quality of product is good, I think if he was to wear it again, it would hold up well."