I'm 5'6 195 and ordered the 3X and the fit is perfect, not quite as flowy as the Amazon picture but still nice. Only order your true size if you want a snug fit. I'm normally an XL or XXL on amazon and the XL just wouldn't have fit right at all and the XXL would have been quite snug.. The reviews helped me make the right choice so I appreciate them. Sorry about the indoor picture with sun glasses, lol. I hope the pictures help you. The material is like a thin polyester and super comfortable. I washed and dried with my normal load with minimal shrinkage and came back and ordered more. If you want this to fit like the picture order 1-2 sizes up. I would say two sizes. I have a few other shoulder shirts  from Amazon and some are a tad thicker but I actually prefer them thin and comfy for summer. Some that I've bought were a little too lose in the shoulder but this has fit my arms well too.