"I went by the sizing guidelines, even measuring my children and the pants on this costume came to my son's knees. Very snug throughout. My children are not heavy and usually run true to the age/size of clothing. The ears didn't sit up so we had to pin them and the cap was too small. Despite all of this my son loved the costume and was happy."
"I went by the guidelines for sizing, even measuring my children and these costumes were a bit short and snug throughout. My children are not heavy. I would have chosen the next size up if I had seen them in person and allow room for clothes underneath."
"I went by the guidelines for fitting but all of the costumes were a bit short and a little snug. My kids are not heavy. They were still able to wear them OK but I may have chosen a bigger size if I had seen them in person."