I purchased this costume for my 4 month old. It is good quality, very cute and well worth the price!
Bought in September for my one month old, will be two months old by halloween. He is 10 pounds as of now and this runs a little big although it says 0-6. It may be too small for my baby when he is 6 months old. I was very impressed with the color, it looks nicer than online. The inside of the costume is very nice. Like a nylon material which is nice because it won't make my baby too warm.