Demok wore something very similar, but it's not that. It's armour that soldiers used to wear 500 years ago. I plan to draw Demok's mourning outfit this weekend.
My inspiration were actually Greek hoplites
In a Cardassian library
or in a Cardassian gallery
"Reagan, it appears, is really only an ardent unionist if the unions in question are in Poland" - Stephen King, Skeleton Crew