Petite dress by John Zack Petite, Floral print, The bolder, the better, Plunge front, Tie waist, Layered ruffles to skirt, Regular fit, Not too loose, not too tight. 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.