Sometimes called a double Windsor knot, this
is an elegantly-styled knot that looks good anytime but is especially well suited to formal occasions. Works with a wide variety of ties and fabrics.
Drape the tie over your neck, with the reverse side out - the inside of your tie facing outward - and the wide end on your right side.
Cross the narrow end of the tie over the wide end.
Wrap the wide end under the narrow end of the tie, and bring it up toward the center.
Bring the wide end under the narrow end of the tie, from the center of the tie toward the right.
Bring the wide end back up from the right to the middle of the tie.
Pass the wide end of the tie underneath the knot, from the center to the left.
Bring the wide end up from the left to the center, then back down from the center to the right. (Refer Step 7 and 8)
Pass the wide end of the tie over the knot and to the left.
Bring the wide end under the narrow end from left to center.
Pass the wide end down and through the loop in front.
Gently tighten the knot by pulling down on the narrow end and sliding the knot up to your collar. (Refer Step 12 and 13)
Drape the tie over your neck, with the reverse side out - the inside of your tie facing outward - and the wide end on your right side.
Cross the narrow end of the tie over the wide end.
Wrap the wide end under the narrow end of the tie, and bring it up toward the center.
Bring the wide end under the narrow end of the tie, from the center of the tie toward the right.
Bring the wide end back up from the right to the middle of the tie.
Pass the wide end of the tie underneath the knot, from the center to the left.
Bring the wide end up from the left to the center, then back down from the center to the right.
Pass the wide end of the tie over the knot and to the left.
Bring the wide end under the narrow end from left to center.
Pass the wide end down and through the loop in front.
Gently tighten the knot by pulling down on the narrow end and sliding the knot up to your collar. 
