This is an amazing vintage item- would be a great addition for Atari collectors or for Post Cereal collectors. It would look very nice in a frame or to be worn by a little boy or girl. The shirts are new- never been worn, they were found in at an estate sale surrounded by Atari computers in an old building that was used as a school at one point. As this is a vintage item, I believe the sizing runs a bit small, so if you are purchasing this item to be worn please refer to the measurements to ensure fit. 

Measurements (approximate): 
Armpit to armpit laying flat: 12"
Length: 17"
Sleeves: 6"

Thanks for looking! Please feel free to message me with any questions you may have.