two-piece
two-piece suit
lounge suit

For access to the stands, you must wear a 'lounge suit', basically a jacket and trousers.

In many cases, the Genevan gown was replaced by a lounge suit.

Just standing around in my lounge suit, thinking about stuff.

I got scolded because my lounge suit was now turf-stained.

It was dressed in a lounge suit and bow tie.

"It makes me sound very shallow but I've done some really serious plays in a decent lounge suit."

All the other official guests without exception had worn lounge suits.

In modern times the black lounge suit has become popular to wear during the day.

He was the only man in the place wearing a lounge suit.

In the first place he went South in a lounge suit.