Waistcoat by Millie Mackintosh, Sequin-embellished fabric, Fully lined, Collarless design, Draped waterfall front, Plain racer back, Regular fit - true to size, T-shirt not included. Since launching her brand in 2014, Millie Mackintosh has become known for her collections inspired by rebellious British femininity. Dresses are key, accompanied by exclusive prints, outerwear pieces and feminine tailoring.