100% Polyester Fabric REMOVABLE DUVET COVER – Help you protect your weighted blanket to extend its life and change the look of your plain blanket. PREMIUM MATERIAL – The removable duvet cover is made of ultra-soft microfiber fabric to keep you cozy while you rest. SIZE AND WEIGHT – Size is 36 inch x 48 inch, designed to perfectly fit your AmpleSky weighted blanket in size 48”x72”. INTIMATE DESIGN – Specifically designed to fasten in places to the AmpleSky weighted blanket insert to ensure your blanket won’t slide around within the cover. PACKAGE – The package includes a removable duvet cover.