I bought a 2X based on the other reviews and it's true to size either way here for and to me. I didnt choose Large or 1X because, if it helps, I'm 5'3 and weigh about 220, an African American woman within college/University/job age, and pear pear-shaped body. For shirts, I normally get L or XL, occasionally a medium depending on the fabric material used and the reviews. So, I went with a 2X, and the arm holes hug comfortably, and everything else hugs too but there's extra room for me, so if I had wanted this shirt to fit like a compression shirt I would've gotten 1X, and if I wanted to stiffen up wearing this, an L lol. It's great!! :)