My son is 9 months old, on the tall side but average weight and this costume fits him well. It’s just a tiny bit short on him but it’s very roomy/baggy which helps. The Velcro isn’t the best quality and comes apart easily but the leg holes make sure it stays on anyway so that’s nice. It’s a very cute costume and looks exactly like the picture.
The head was huge and kept falling off, the costume was loose yet I couldn’t keep the Velcro on bottom shut and could barely fit it over my 9 month olds head. Costume looked cheaply made with loose strings all over, the eggshell had yellow/brown all over the edges like it was dirty and was fraying.