Petite dress by John Zack Petite, For that thing you have to go to, Bardot neck, Puff sleeves, Ruffle hem, Zip-back fastening, Mini length, Regular fit, Just select your usual size. 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.