Petite dress by John Zack Petite, Embellished design, More is definitely more, Crew neck, Fitted waist, Dress to distract, Close-cut bodycon fit. Turning catwalk styles and red carpet looks into a collection of affordable dream dresses, London label John Zack channels a fun, party girl aesthetic. Now perfectly designed in petite proportions, the John Zack Petite collection is party prepped with jumpsuits, bodycon dresses and lashings of lace.