Olivia von Halle's 'Nika' robe is made from smooth and lustrous silk-satin in a striking black and white striped pattern. It's designed with shawl lapels and exaggerated cuffs, and has a self-tie belt to cinch the waist and secure it closed.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.