Our exclusive pure white pillow protector is made of 100% cotton sateen, edged with luxurious blue satin piping. It features a hidden zipper that makes it easy to remove and wash. Standard pillow cases and protectors add a layer of fabric that prevents some light wear and tear associated with sleeping on a pillow. Over time, pillows can fade, get dirty and accrue tears or holes. Using pillow protectors can prevent some types of damage.