I took a chance with this shirt and I'm glad I did. It paid off! I'm 5'6 and weigh 125 pounds. So I'm not a big guy. I chose a 14.5 neck and 32/33 inch sleeve, not sure if the size 32/33 means chest or arm length. I know my chest size is 34 inches but you know what. This shirt fits me perfectly! Not tight at all and great quality! The way they packaged this shirt was a pleasant surprise too! I am very happy with this shirt and all round experience.