Plus-size dress by John Zack Plus, For a look as lit as your plans, Plunge neck, Long sleeves, Shoulder pads, For some serious shoulder action, Crossover front, Regular fit, A standard cut for a classic shape. Turning catwalk styles and red-carpet looks into a collection of next-level dresses, London label John Zack preps you for the party. Fall for its plus-size range of lace, ruffle and cold-shoulder maxi styles.