True Certified Organic DUVET COVERS Soft and Luxurious - King Blue 100% Organic Cotton Included ONLY DUVET COVER. 100% Certified Organic Cotton, no polyester, and no harmful chemicals. . Finer yarns construction for softness and durability. no polyester, no softener, and no harmful chemicals. Just pure and natural. High performance woven combed fabric (not a knit) for durability and long term dimensional stability. Preshrunk for good fit. Upscale construction with inner ties. Organic button closing in envelop style. 350 Thread count All organic processing including organic covering which is reusable as clean bag. Twin is 68x88, Queen / Full (88x90), King / Cal King 96x106 inches. Will accommodate slightly larger duvets and comforters.