Why is it called double Windsor?
Where does the double Windsor knot come from? The widespread knot was named after the Duke of Windsor, who brought the technique from America to Europe at the end of the 19th century. In Europe, the double Windsor has quickly gained high popularity and is considered as a must-have for special occasions.
Which tie knot is most professional?
Full-Windsor knot
The Full-Windsor knot, sometimes called the Double-Windsor, is the most formal knot of the three. This is the fullest, widest knot, and so goes best with wider and longer neckties. Its fullness gives it the most formal look and so is appropriate with formal, wide spread dress shirts.

Is a full Windsor the same as a double Windsor?
THE FULL WINDSOR TIE KNOT The Windsor knot is also known as Full Windsor, or Double Windsor in order to be further distinguished from its half-Windsor counterpart. It gets its name from the Duke of Windsor, or more precisely, King Edward VIII.
Which Windsor knot is the best?
This is one of the two types of tie knots every man should know, with the Four-in-Hand taking the other medal. All in all, the Half Windsor is the ‘daily choice’ for many suit-wearing professionals.
Do you need a longer tie for full Windsor?

For correct wear, the tie should be at least 4 centimeters (about 1.6 inches) longer than a conventional tie. The thick knot at the collar in a Full Windsor uses a lot of fabric. Use a classic, long silk tie to tie it. Avoid tweed or knitted ties as they will be too bulky for this knot.
Should I use half-Windsor or Full Windsor?
The half-Windsor finds its place, where formality is concerned, right in between the four-in-hand knot (that is not highly formal, and worn best appropriately at social outings and parties), and the Full Windsor (that is very formal and best suited for events such as weddings and business meetings).