Black formal waistcoat featuring four gold-tone metal buttons embossed with insignia motifs near the lower front. The front is tailored in black wool, with a cream cotton lining and a black satin back panel fitted with an adjustable belt and buckle. The design includes two lower welt pockets (often used for a watch or small accessories). The lapels are rounded and partially faced in satin.
The style and materials are consistent with Canadian military mess dress or formal service attire used by officers during the mid-20th century.