Black Tie
The most common dress code, 'black tie' can itself be qualified further:
- 'Black Tie Optional'
This is generally the least formal of formal events and is sometimes called 'Black Tie Invited'. Wearing a Dinner Suit is appropriate but not mandatory. Men will attend in Dinner Suits but dark business suits will also be prominent.
- 'Black Tie Preferred'
This is more formal than Black Tie Optional. Wearing a Dinner Suit is not mandatory but is definitely preferred. One can wear a dark suit but the majority of attendees will be wearing a Dinner Suit.
- 'Black Tie'
Dinner Suits are not optional - one must be worn. Classic 'Black Tie' comprises of a black Dinner Suit, white wing-collar shirt, black bow-tie, and black cummerbund. The bow-tie does not have to be black, it can be as extravagant as you dare - but should match the colour of cummerbund being worn.
If attending a wedding as a guest where 'Black Tie' is required it is prudent to wear classic 'Black Tie'. This is in order to avoid any clashes with what the groom and groomsmen may be wearing, and so as not to upstage the bridal party.
White Tie
This is the most formal of formal events. Evening Tails must be worn, with a white waistcoat, white wing-collar shirt and white or black bow tie. 'White Tie' is rarely stipulated but is the standard when attending occasions of State.
Tips
It is now more commonly accepted for those attending formal occasions to be more expressive in the items that they wear. One can wear waistcoats and different style ties to most events. As long as one adheres to the minimum standard of dress required there should not be a problem.
If unsure of what the dress code is to a particular event, contact the event organiser. It is better to check than guess and turn up in an inappropriate outfit!