I'm 6'2" 180lbs, 32" waist and 39" chest. Thin but muscular. I bought a US large/Asia XL and it fits like a glove. Not too tight. Not too loose. I have a long back and it falls just below my belt. It shows my arm/chest muscles, but not to the point where I look like I'm showing off. The material is not thin but also not overly heavy. Just right. Bought a grey one and am going back now to buy a few more colors.