MENS CLERICAL DICKEY (BLACK) Sizes Are Based On Neck Size - (Recommend Ordering 1/2 Size Larger Than Neck Size) A Comfortable Clerical Dickey that provides a clerical collar look when worn under an open collar shirt or sweater. Can also be worn under a clergy robe. Purple polyester fabric with a simulated collar sewn permanently to the dickey body. Collar Height is 1.25 inches. Simple Closure in back with Velcro.