Bests & Worsts Reviews from Amazon

I know I'm not a tiny person. I'm usually between a large and XL. So I ordered an XL to be safe. The only thing I can figure is that it's a child's XL, although it said adult on the order and bag in which it came. I'm attaching a picture of my 6-year-old in this shirt. Obviously the sleeves are long on him (because, you know, he's 6), but the rest fits him quite comfortably. Not like an adult XL souls fit.