Tux

What color vest are father's wearing?

I was told that Black on Black is the traditional look.

FFIL just picked his out yesterday and is actually matching with FMIL - so it's a green color

My dad - not sure yet. My my has a dark purple dress so not sure he is gonna want to wear that color, so maybe he will just go with black.

It's really up to whatever he is comofortable with.