Double-breasted

He was wearing a double-breasted jacket.

The train staff were at least smartly dressed. They had better be, or they were sacked. They had to keep their double-breasted uniform coats buttoned right up at all times,[…]

The double-breasted blazer which is on every front row this season came with an elbow-length sleeve for spring, while jumpsuits, a signature of the label, came slinky and tailored or in a blowsier boiler suit silhouette.