Plus-size dress by John Zack Plus, This is a bit of you, High neck, Partially lined, Short sleeves, Zip-back fastening, Regular cut, Fits you just right. 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.