Saint Laurent - Saint Laurent considers the elegance of androgynous codes with this black waistcoat, harking back to the iconic Le Smoking tuxedo which subverted women's eveningwear in the 1960s. It's crafted in Italy from cotton velvet with a back buckled tab for the perfect fit, then lined with smooth silk satin. Wear it with a crisp white shirt and high-rise trousers for a polished look.