Similar to a pillowcase, this blue king cotton blend washable duvet cover set is intended to encase your duvet or comforter for added protection. With sturdy construction from cotton blend, the covering is designed to be soft and long lasting. As a bonus, this bedding fits the best of both worlds. It was expertly designed to stay warm in the winter but cool in the summer. King sizing is perfect for the primary bedroom. This duvet cover is the perfect accessory for anyone who is in need of a great night's sleep. Style, durability, and comfort combine so you can rest easy knowing that you're covered duvet cover. 11.00-inch h x 9.00-inch w x 4.50-inch d.