"100% high density breathable natural cotton,durable and comfortable,suitable for 60 inches x 80 inches weighted blanket with any weight Eight connection points are designed between duvet cover and weighted blanket to ensure your blanket won't slide around within the cover Extended 59"" YKK zipper closure makes the machine washable duvet cover easy to remove &easy to clean and care Protect your weighted blanket to extend its life & give you more color choices to match with decoration Machine washable in cold water. Only duvet cover, do not include weighted blanket"