Karen Millen is a British online retail company that sells a variety of clothing, accessories and much more. Explore an assortment of new designs and secondhand Karen Millen dresses in a range of styles, such as off-the-shoulder pieces and floral numbers. Whether you go for a plain or Breton striped dress, you're bound to get heads turning. Discover a number of used fashion items designed by this label on Depop today.