Windsor knot

The Windsor knot, also referred to as a Full Windsor or as a Double Windsor to distinguish it from the half-Windsor, is a method of tying a necktie. The Windsor knot, compared to other methods, produces a wide symmetrical triangular knot.

The knot is often thought to be named after the Duke of Windsor (King Edward VIII before his abdication). It is, however, likely that it was invented by his father, George V. The Duke preferred a wide knot and had his ties specially made with thicker cloth in order to produce a wider knot when tied with the conventional four-in-hand knot. The Windsor knot was invented to emulate the Duke's wide knot with ties made from normal thickness cloth.