Designer Runa Ray Does Stylish Sustainable Fashion at the United Nations Green Fair Fashion Mingle 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, Recycled Gown Made from Rice Sack: A Fashion Statement Lanvin Vintage Y2K Designer Crossover Tunic Dress Size M 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 1950s Potato Sack Novelty Printed Sack Dress Wayward Collection