Thanks to the first review saying these run small, I bought two mediums for my 7 & 9. These really are amazing, but do size up!

Buyer beware! I bought the 12/14 size for my 12 year old son. These pjs barely fit him. The pant leg ends three inches above his ankle, and the sleeves end a solid two inches above his wrists. The seat seam is nearly a wedgie. He is an average sized 12 year old, so I cannot imagine that these would even zip up on a 13 or 14 year old. I would return them, except that he was so excited to wear them the tag got ripped off. Looks like this will be an immediate hand-me-down to his 10 year old sister.