I ordered this for my granddaughter who will be turning 3 in a few weeks. The 3-4 size just fit her perfectly but she will certainly grow out of it soon.  She is 39" and in the 70th percentile (H/W). To me it looks like a true 4 measurement and will not fit well on a child who is chubby. I This dress is made to be fitted and has an invisible zipper on the side. I really does look lovely and I was particularly happy the white fabric on the top is only slightly transparent so as not to be inappropriate for a child.  This is the second costume I have purchased from this seller and have found them both to be very good quality at a wonderful price point. My granddaughter will certainly get hours of joy out of this costume. I found this sellers costumes to be better quality than those found I have found at the disney store for double the price. I routinely repair my granddaughters costumes and I am sure this will require repair eventually but I feel they will be easier to repaid than those costumes made with that cheap, thin, nasty stretch knit sewing machines just love to eat up.  I will definitely keep buying from JerrisApparel.