70% Viscose Made from Bamboo, 30% Cotton Featherproof & Downproof - Our pillow protectors will stops feathers or down from poking through, block them to protect you from those stabbing quills of the down pillows Waterproof - The back of the pillow protectors are coated with membrane, protect your pillows from all kinds of liquids such as perspiration, sweats and other stains Soft & Breathable - The surface of the pillow protectors are made with bamboo viscose blend material, which is more breathable and gentle to the skin Fully Encasement - Our zippered pillow protectors completely seal your pillows with fine teeth zipper, 360 protection, stops those little thing from in and out your pillow, prolong the Life of your pillow Easy to Care - Machine washable, tumble dry low. Reduce the trouble of cleaning the whole pillow. King size (20 in x 36 in) 2 Pack.