Western dress codes are dress codes in Western culture about what clothes are worn for what occasion. Classifications are traditionally divided into formal wear, semi-formal wear, and informal wear. The first two sometimes in turn divided into day and evening wear. Anything below this level is referred to as casual wear, although sometimes in combinations such as "smart casual" or "business casual" in order to indicate higher expectation than none at all. Formal i.e. white tie, semi-formal i.e. black tie, and informal i.e. suit, all have roots in 19th century customs subsequent to the replacement of the 18th century generic justaucorps, and has remained essentially fixed defined since the 20th century, despite decline following the counterculture of the 1960s. The 19th century frock coat rarely occurs except as formal alternative. For women, interpretations has fluctuated more dynamically according to fashion. For both men and women, hats corresponding the various levels of formality declined following the counterculture of the 1960s. Dress codes are typically explicitly instructed, but may also be expected by peer pressure of sensitivity. Ceremonial dress, military uniform, religious clothing, academic dress, and folk costume appropriate to the formality level are generally permitted alongside the respective dresscodes and may be permitted as supplementary alternative exceptions to the uniformity, often in the form of headgear. Conversely, since most cultures have at least intuitively applied some level equivalent to the more formal ones in Western dress code traditions, the latter's versatile framework open to amalgamation of international and local customs, have influenced its competitiveness as international standardformality scale.
History
The background of traditional contemporary Western dress codes as fixed in 20th century relied on several steps of replacement of preexisting formal wear, while in turn increasing the formality levels of the previously less formal alternatives. Thus was the case with the ceasing of the justacorps, extensively worn from the 1660s until the 1790s, followed by the same fate of the 18th centuryfrock, in turn followed by the frock coat.
Full dress, half dress, and undress
Before the modern system of formal, semi-formal, and informal was consolidated in the 20th century, the terms were looser. In the 19th century, during the Victorian and Edwardian periods, the principal classifications of clothing were full dress and undress, and, less commonly the intermediate half dress. Full dress covered the most formal option: frock coat for day wear, and dress coat for evening wear. As such, full dress may still appear in use designating formal wear. When morning dress became common, it was considered less formal than a frock coat, and even when the frock coat was increasingly phased out, morning dress never achieved full dress status. Therefore, in the 21st century, full dress often refers to white tie only. Today's semi-formal black tie was initially described as informal wear, while the "lounge suit," now standard business wear, was originally considered casual wear. Half dress, when used, was variously applied at different times, but was used to cover modern morning dress. Undress in turn was similarly loose in meaning, corresponding to anything from a dressing gown to a lounge suit or its evening equivalent of dinner clothes.
Etiquette
The table below summarises the traditional Western dress codes: Please note that the definitions listed above are the strict, traditional definitions, which may not be followed in common use. For example, formal is often used to mean any of the first three, and informal to indicate what is classified here as casual.
Formal wear
Typical events: Weddings, state dinners and affairs, formal balls, royal events, etc. Note that the use of white tie and morning dress has become rare in some countries, where black tie or a lounge suit is often worn to the above events.
Semi-formal wear
Typical events: Theatre opening nights, charity balls, etc. There is some variation in style depending on whether it is summer or winter. See black tie and stroller for more details. In the last few decades, in place of the traditional white tie or morning dress, black tie has been increasingly seen in the United States at formal day wedding. However, etiquette and clothing experts continue to discourage or condemn the wearing of black tie as too informal for weddings, or any event before 6 p.m., such as by Emily Post and Amy Vanderbilt, the latter arguing that "no man should ever be caught in a church in a tuxedo."
Informal wear
Typical events: Diplomatic and business meetings, many social occasions, everyday wear Business wear is included in the informal category, generally consisting of a business suit and tie. Informal dress code encompasses all suits, but not all suits are considered business appropriate in fabric, cut, or color.
''Casual wear''
Casual wear, although not traditionally part of Western dress codes, are sometimes applied colloquially. Related to this category is business casual, smart casual, etc.
