Mini dress by John Zack, Add-to-bag potential: considerable, Plunge neck, Sleeveless style, Ruched skirt, Bodycon fit, A tight cut to the body. Turning catwalk styles and red carpet looks into a collection of affordable dream dresses, London label John Zack channels a fun, party girl aesthetic. Look to the John Zack range for party dresses in sleek bodycon styles, bold leopard prints and punchy acid colours.