I’ve ordered quite a few t shirts, and I can wear a small or medium. Small if I want a tighter fit, medium if I want a more relaxed fit. The small is a tad shorter I’m 5’6. But it hits just at the top of my pants! These shirts are so incredibly soft and comfortable, the arm holes aren’t too tight either (some shirts irritate your arm pits when too tight). Quality quality products by bridge and burn! Love every single thing I’ve ever bought!!!!!!