open-back flared long dress from STUDIO NICHOLSON featuring cotton-linen blend, halterneck, square neck, open back, rear zip fastening, sleeveless, flared skirt and long length. This item contains at least 50% materials which are certified or widely recognised as having a lower environmental impact through production and/or manufacturing processes that reduce water consumption and the use of harmful chemicals, or re-use by-products of the production process.. Learn more about what makes a product Conscious on our Conscious Criteria page.. Cotton Cotton 100%. DARKEST NAVY.