Petite top by John Zack Petite, This is a bit of you, Square neck, Three-quarter-length sleeves, Shirred-stretch design, 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.