The shirt fits well. Just like every other 5.11 shirt I own - I wear the same size in all of them so I'm not sure what happened to the guy who said he had a sizing issue. They are very standardized throughout their line. Anyway, I couldn't tell from the pictures, but this model is a knitted version of the polo with short sleeves. If you want a cotton jersey polo, this isn't it. Jersey material so I'll probably order more of these later. Knitted ones are too hot for me in summer.