A previous thread had this definition:
>Formal wear (Canada, US) and formal dress wear (UK) are general terms for clothing suitable for formal social events, such as a wedding, formal garden party or dinner, débutante cotillion, dance, or race. The Western style of formal evening dress, characterized by black and white garments, has spread through many countries; it is almost always the standard formal social dress in countries without a formal national costume.Underscore the last 5 words:
>without a formal national costumeSauce is obvious:
https://en.wikipedia.org/wiki/Formal_wearWhile I love kimono and hanbok as much as any anon, I think the thread should keep some boundaries, lest we go completely off track.