You will find that the short sleeves add a bit of structure without being stiff.
Boys’ AC/DC N.A. We Salute You 2015 Tour Tee T-shirt Youth Small Grey
Short sleeves help this shirt feel less heavy and more breathable overall.
Men’s Anthrax Bloody Wings N.A. 2016 Tour Tee T-shirt Small Black
What stands out about the small is how it drapes neatly on slimmer frames.