Relieve your allergy symptoms and block 99% of allergens with the Simply Essential Allergen Pillow Protector. The allergen barrier fabric is composed of ultra-soft, breathable, and comfortable microfiber. This material defends against dust mites, pollen, bed bugs, pet dander, and other household allergens that can trigger allergy & asthma symptoms. This protector fully encases your body pillow with a zippered closure to further prevent allergens, dirt, and stains from getting through. Machine wash with cold water, and dry on low heat. Keep yourself, and your family, happy, comfortable, and allergy free with the Allergen Pillow Protector!