I couldn't wait for Halloween for my almost 10 month old to wear this costume. It was AWESOME. I had about 20 people stop and tell us how cute it was.  He was the only baby in an Elvis costume & I really liked it b/c it was different from all the other traditional baby costumes you find.  It fit my son almost perfectly at almost 10 months (he is tall and good sized-he fits in 12 month clothes) to give you an idea of size. It was easy to put on him since it's a one piece with a zipper at the top. And you just add the belt & cape. We have the cutest Halloween pictures b/c of this costume.