This 'Moscow' sweatshirt and track pants set is Olivia von Halle's favorite style from the 'Missy' collection. It's knitted from an impeccably soft double-faced silk and cashmere-blend that took two years to perfect, and is finished with sporty metallic black and antique-rose stripes. We love that it feels super comfortable on long-haul flights but also looks chic in the lounge.