BED BUG & ALLERGEN PROOF BARRIER, ONE PILLOW COVER WITH NEW LOCKING ZIPPER * Breathable, cotton-like comfort fabric, Soft, ultrafine, protection barrier for Bed Bugs, Dust Mites * Only pure clean air gets through. Extremely durable microfiliment fabric with NEW double lock zippe * Wash & Dry Unlimited , 10-Year Warranty, Only AIR gets through the microscopic fiber pores * Sleep-Safe ZipCover protects you from Bed Bug infestation, Dust Mites, Insects, Parasites, Allergens