●Polyester ●4-PACK TERRY PILLOW PROTECTORS – Our terry pillow covers encase your pillows for enhanced comfort. They are made of polyester and perfectly fit Standard-sized pillows, measuring 20 by 26 inches each ●WATERPROOF POLYESTER TERRY FABRIC – High quality TPU backing is a waterproof barrier which stops liquid from passing through and also resist sweating, fluid stains, saliva, and bedwetting. They are soft, durable and noiseless. ●ZIPPERED –The zipper seals the pillows for potential leaks which amounts to a hygienic and soothing sleeping experience ●ZIPPER ENCLOSURE – High quality zip and double hemmed stitching ensures absolute protection and also makes it handy to put them on and off the pillows ●EASY CARE – Our pillow covers are machine washable that you can tumble dry on low heat settings to make them appear as good as new after every wash