I'm a poser.
I ONLY have Primal Wear jerseys (the most bland, muted jerseys of the bunch) because they fit me. I have a 33 in. waist but wear a 48 jacket because I've been throwing weights around in the gym for the last 18 years - which fits me into a XXXL jersey. These are the only XXXL jerseys that don't flap around like a dress on me.