Look 5, Sack Dress is crafted from authentic sack cloth, cut into an 8 piece flare for movement and volume. It features a halter neckline, back zipper, and stove thread wool detailing that runs from Design empire began with Gunne Sax 12 Famous Fashion Designers In History GLAM OBSERVER Marilyn Monroe's iconic potato sack dress photoshoot Sack" dress by Cristbal Balenciaga, August, 1957. Wool crepe.In the mid 1950s Balenciaga created flawlessly cut clothing with loose, stand away backs and fitted fronts. He introduced the sack dress, a shapeless shift, 1950s Potato Sack Novelty Printed Sack Dress Wayward Collection