I am interested in a Dolce & Gabbana shirt which is marked 15 3/4, which I know is the collar size. Can anyone with knowledge of the brand tell me what sort of chest/shoulder (most importantly chest) measurements a shirt of this size and brand would have? I guess it would be the equivilent of a size 38, which is chest, but does a 38 - in this brand or brands in general - usually measure more than that at the chest? If it helps, I usually wear a 40 or a 16. An actual tape measure around my chest will give me a measurement of almost exactly 38 inches. It's tough buying online.