100% Waterproof King Pillow Protectors: Protect against bodily fluids, sweat, and liquid threats with our pillow covers standard size. Zippered pillow protector design ensures complete encasement Hypoallergenic & Allergen Protection: Our hypoallergenic pillow protectors guard against dust mites, bed bugs, and allergens, keeping your pillows clean and with no irritants. Ideal allergy pillow protector Zippered Encasement for Full Protection: Our waterproof pillow case's durable zippers fully enclose your king size pillows, extending lifespan and providing ultimate protection against all irritants Blocks Bed Bugs & Dust Mites: Designed to protect against bed bugs, dust mites, and sweat, ensuring a clean and healthy sleeping environment with our zippered pillow protectors Machine Washable & Dryer Safe: Easy to care for, our waterproof pillow case covers are machine washable and dryer safe, withstanding frequent washings without losing effectiveness.