I found that this shirt ran really large, or at least mine did. I made a 74 for my 16 month old son, and he is swimming in it. The length is not really as long as my picture since I added a second hem on the bottom and sleeves which made the shirt much longer. I did not really like the narrow neck band on this shirt much either. If I were to make this shirt again, I would make it a little smaller, and I would put a wider neck band on it.