OKEOTEX Standard 100 GOTS Certified National Allergy Pillow Protectors are made from 100 unbleached organic cotton which promotes a sounder nights rest by limiting allergy irritants Our hypoallergenic organic cotton pillow covers feature a 48 micron mean pore size an exclusive Zipper System and are engineered to fully encase protect your pillow Recommended by Doctors available in Standard King Queen pillow cases Breathable Tight Weave Our USAdesigned 100 cotton weave is recommended by Doctors nationwide Our organic pillow cover is woven so tightly that only air can pass through The average mean pore diameter for the most common allergy irritants is 20 Microns With a mean pore size of 48 microns our breathable natural cotton fabric keeps you cool comfortable and protected Zippered Protection Keep your pillows clean protected with our TwoPart Zipper System The auto locking zipper locks the zipper slide in place so that it will NOT backtrack to leave small openings that allergy irritants could sneak through This ensures that our organic pillow cases will stay closed An added barrier creates a fabric shield under the zipper closure to doubly ensure there are zero gaps Noiseless Comfort National Allergys Pillow Protector is made from 100 cotton Our durable quiet pillow encasement is soft to the touch and noiseless when moving around while asleep This pillow cover is designed to provide an extra layer of quality protection We recommend using a pillowcase over our organic pillow protector for the best experience Please note that Bedcare Organic Protectors are not waterproof or water resistant MADE IN THE USA National Allergys soft durable and 100 organic cotton pillow case protector is fully machine washable making them the perfect choice for everyone Our doctor recommended cotton pillow cases pillow protectors are designed for everyday life easy to clean easy to use Certified to meet the Global Organic Textile Standard GOTS