how should collared shirts fit
How the dress shirt collar should fit. The dress shirt collar should fit comfortably without being too loose. As tight or snug as possible without being uncomfortable. You should be able to fit 1-2 fingers between the collar and your neck when it is buttoned. You should not have a large gap showing between the collar and neck. Heavier men should make sure their necks are not puffing out over the top of the collar.