Since launching her eponymous brand in 2001, British designer Stella McCartney's super chic collections have continued to set the standard for sustainability. Wear the brand's satin-finish sleeveless blouse featuring amethyst blue, satin finish, round neck, concealed rear zip fastening, sleeveless and straight hem. Pair it with Alex Perry trousers. Accessorize with Zara flats, a Future Glory bag and matching glasses.