Plus-size dress by John Zack Plus, Lightweight lined fabric, Sheer lace top, V-neck, Scalloped edges, Flutter sleeves, Zip fastening, Regular fit - true to size. 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.