Measurements are probably not the best to gauge fit, as my way of measuring is nowhere standardized. More info:
-The shirt is slightly less slim than a RLBL shirt in the same size
-The shirt is similar in slimness to Brook's brothers' slimmest shirts in the same size
-The shirt is similar in slimness to Kent Wang's size 15
I wear size 36S jackets and waist 29-30 pants. This shirt is slim but not skinny on me-- if you're similar to my size, it would fit you.