Sizing difficult to figure out.  Guessed size 7, which was right. Has British flag inside collar, so I guess size is British unit.  Length corresponds to XL, but arms and shoulders are a bit tight, and I am not a muscular guy.  First shirt I've had this feeling with.  I have a psycho bunny shirt from a local retailer that fits better.  Still like the look of the psycho bunny symbol, and I am keeping the shirt.  It was a good price at sixty five.