Plus-size dress by John Zack Plus, Is that you, weekend?, Plunge neck, Partially lined, Long sleeves, Ruffle hem, Zip-back fastening, Bodycon fit, A tight cut to the body, Exclusive to ASOS. 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.