It's difficult when you have a son who is almost exactly the size of a man but can fit some XL boys. My friend is tall for his age (5'1" in fifth grade) so my problem with kid sizing is that these shirts can be too short to wear long. some are long and slim, some are are short and square(wide) some are huge in full length this shape is wide after wash and a bit short not so great if your son is tall it won't take us long to get too short and too often goes upstairs. On a positive note the graphics are really good and well made. Very casual and understated - doesn't look or feel like a stiff new shirt and the quality of the fabric is good. Live looks better out than the picture.
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