Keep your property’s pillows clean and fresh, while enhancing guests’ comfort. The Registry 230 Thread Count Pillow Protector features a rustproof nylon zipper and is made of 100% cotton for comfort. The featherproof protector slips easily over the pillow and zips closed, providing a secure and clean middle layer between the pillow and pillowcase. This standard size pillow protector measures 21 W x 27″ L.