The quilted cover is made from a 300-threadcount 100% sateen cotton fabric with excellent finishing and sanforization, to ensure both smoothness and durability of the fabric. LUXURIOUS QUILTED DOWN-ALTERNATIVE PILLOW TOP COVER: The top layer features a high-end down alternative-filled quilted cover (made of 300-threadcount 100% sateen cotton fabric) that is hypoallergenic and machine washable.
eBay