Great rash guard. I use for NoGi Jiu Jitsu and Surfing. I'm 6' 180lbs and ordered a size up (XL) based on reading other reviews (I normally wear a Large shirt). The fit is great (not too tight) which allows me to move freely when rolling and still works well in the water without being overly baggy. Highly recommend just make sure you size correctly. Others may want a more skin tight fit if using predominantly for water activities (snorkeling, swimming, etc.) I attached some pics for a visual of the fit.