The Millennium waistcoat in an indigo and black puppytooth pattern references a heritage motif that s at home with REISS storied spirit. It's crafted from a soft wool blend with a V-cut neckline and a six-button front. Wear it with the coordinating blazer and trousers. V neck. Satin back. Puppytooth pattern. Sleeveless. Six buttons. The model is wearing a size 38.