A suit with a double-breasted jacket WordNet 3.0 & Open English WordNet

A double-breasted garment is a coat, jacket, waistcoat, or dress with wide, overlapping front flaps which has on its front two symmetrical columns of buttons; by contrast, a single-breasted item has a narrow overlap and only one column of buttons. Wikipedia

Garment such as coat or jacket with two columns of buttons Wikipedia Disambiguation

Describes a garment for which a wide section in the front overlaps the other side and has two rows of fasteners. Wikidata