Petite dress by John Zack Petite, Contrast lining, High neck, Mesh inserts, Cinched waist, Zip-back fastening, Fit and flare shape, Regular fit - true to 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.