Petite dress by John Zack Petite, Floral design, Blooming lovely, High neck, Split back with tie closure, Ruffle trims, For the frill of it, 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.