It will be a little tight around my middle - which was the reason I ordered a 2X in the first place.. Long sleeve 2X IZOD shirts (NOT Big & Tall) fit loosely, which is what I was seeking.
Then there are the tiny plastic pieces that the manufacturer thinks are necessary to keep the shirt from becoming a pile during shipping. Cutting them and removing all of those tiny pieces is a process requiring a magnifier and tweezers.