The odd vest can take three forms if you will, those being:
- unrelated to jacket or trousers
- matching vest and jacket with contrasting trousers as worn by André Churchwell in the photo, or
- matching trousers and vest with contrasting jacket.
Matching nothing, the truly odd odd vest is by far the most common sight but let me recommend to you the other alternatives. Either requires the vest to be made at the same time as the trousers or jacket in question and for that very reason is rare enough to add interest to the day's clothing.