My favorite new shirt! I am U.S. size generally M-L. I ordered XL. It fits perfectly, could probably even order L but I like that the arms are long enough for me and I have the option to wear it off the shoulder. I tend to sweat and it does not show marks which is truly amazing! It is soft, warm, and flowy. They have nice length to wear with skinnies/leggings. Get many compliments! I am so glad that I ordered 2: Black Grey and Black Brown. Will order more! <3