EXCLUSIVE AT NET-A-PORTER. The clean-lined simplicity of Matteau's collections has earned its place in the wardrobes of some of the world's best-dressed women. This maxi dress is cut for an elegant halterneck profile from crisp, airy organic cotton-poplin. It's gathered at the waist and falls through a loosely pleated skirt. Lower-Impact Materials. This product is made using at least 50% lower-impact materials or ingredients. Find out more about our NET SUSTAIN criteria here.