Worn by opium waiters at the Slaughterhouse. When you have this disguise, you can enter the private zone in the first floor where Andrei Puscus waits for his Opium Waiter. The only loose disguise can be found on the floor in the locker room. Because only one can be in the room at a time, 47 will be suspicious if he is seen wearing it when the other is there.
The Opium Waiter outfit appears in the following missions: