Everest Premium Plus Pillow Protector Encasement100% Water Proof Hypoallergenic Bedbug Proof Dustmite Proof Machine Washable Superior Comfort (Pack of 2, Standard (20"x27")) Pillow Encasement has zipper on one side for easy handling & care of pillow. 100% polyester - NO VINYL. STANDARD size (20" x 27"). Pack of 2 encasements/ protector. Keeps your expensive pillow safe from water, liquid spills, saliva, sweat, drooling during sleep. Protects you from bedbugs, dust mites & other allergens. Keeps pillow clean & hygienic. Pillow Encasement is breathable, durable, smooth surface, easy to cover over big and fluffy type pillows. Machine washable Saves money from buying new pillows frequently. Hotels, motels, resorts, bed & breakfast, nursing homes, hospitals, homes, apartments, rentals & many more useful places.