BACK ON CUMMERBUND, i'm sure everyone would have seen it b4. its one of the "must have" in tuxedo pieces back in the 70s/80s(if you still donno what it is, its the red item below). let me share how i would piece it up into a dressy but not-so-formal look.
red satin cummerbund
black rolled sleeves shirt(will unbutton first 2 buttons)
black pointed shoes
ok, this are all from topman except for the cummerbund. i'm making the cummerbund the main actor here while the whole outfit looks very suitable for the night life.
white rolled sleeve shirt(will unbutton first 2 buttons)
black shiny skinny trousers
this, a more dressed+attitude way of wearing it. simple, but with touch of character.
SO, cummerbund is not all about being posh or SHOULD BE worn with tuxedo pieces.