Three-piece duvet cover set from William Morris. The set includes two king shams and a duvet cover, all made from 100% cotton percale with a thread count of 200. Machine washable and tumble dryable, this set is easy to care for and perfect for both teens and adults. The LODDEN - BLUE model is STANDARD 100 by OEKO-TEX certified, ensuring that your bedding is made with quality materials.