Meaning This, with the word “formal” attached. I mean, I was glad vest came back after being banished during the 90’s for having been abused as 1970’s disco & 1980 Wall Street costumery. But still, two of them at once? And with the bottom button not undone? I cannot tut the appropriate level of tuts.
This look, while not my demographic, is different - the vest equivalent of multiple polo shirts with popped collars, no presumption to formal dress. (my only objections are that the outer vest may be improved with lapels; and braces, never belts, are worn with waistcoats. When you wear a belt with a vest it looks like you’re missing your holster and cap gun)
Does this mean that when pleated trouser return as well, they’ll try to revive reverse pleats?