The cloak did fit my large (12lbs+) 2-month old, so the sizing on this, which I wasn't sure of, is accurate for a large infant; seems to me it would barely fit a 12-month-old unless that child was really pretty small, though the booties/gloves *would* fit, as they are very large and didn't fit my baby.  It should be noted that the cloak is made of very cheap felt, but for the $13 I paid, it was totally worth it for the photo opp since I would never have bothered to make something like this myself.  Also, the ears do stick up on their own, which is nice.