Three button coats button at the top and center or center only. Some jackets feature four or more buttons, in which case only the top gets buttoned or all except the one at the bottom. Contoured jacket collar should lay smoothly around the neck with no space between it and your shirt. A vest should cover the waistband of the trousers. Lapels should be slightly rolled and extend just about halfway between the collar and the shoulder line.
Some designers cut lapels wider or narrower, depending on personal preference.
When squeezed, lapels should return to their original shape without wrinkles. The well-cut jacket sleeve falls just to the bottom of the wrist. Shirt sleeves should fall just below the wrist so about one-half inch of shirt shows. If you bend your arm and the cuff recedes far behind the wrist, the sleeve is too short. But generally dress shirts should be in proportion to a man's body.