Kids BAPE T-shirt size XXL, NWOT

This shirt has never been worn and is about seven years old. My son ordered it and it was too small. I’m not sure why we never returned it! Pit to pit measures 17” lying flat & back of collar to hem is 20”. From what I understand this brand’s sizing runs small. I’m guessing this would probably fit a 10-12 year old. Small flaw pictured on the back of the shirt (no design on back).