These are men's sizes, not boys' sizes. How should I know? Well I ordered this shirt for my 5 year old who happens to be a very big baby. He is about 4 feet 2 inches tall and weighs 67 pounds. I ordered a large one thinking it would be too big for his Russell suit. A shirt comes, I take it out and hold it tight. It looks big enough for me and I usually wear a men's size XL. I think I'll try that. IT FITS ME. Now I'm a woman who likes to eat a lot, my BMI is above average, none of my son's big shirts in different sizes have ever fit me. I've tried pulling a few over my head and they usually get caught on the shoulders. It had SPACE. He's comfortable. I keep it to myself, it's huge. So just know it's not boys. Shirt, this is men's size, I took the gold one, FYI.
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