I purchased the Genesis Tee in SS and LS. I’m 6’1”, 195 lbs. and the Large (Athletic Fit) is tapered but not tight. They are some of the most comfortable shirts I have worn. I’ve worn them at the gym and at work. I love to layer my clothes, and the athletic fit is perfect to wear under a button-down shirt. Got cold last night and I decided to wear this as s sleep shirt. I compare this to my Vuori StratoTech shirt which was my former favorite; this has a slightly thicker feel and is more comfortable.