Comprehensive Allergy Protection Fully Waterproof Luxurious Tencel Fabric Ultra-Thin Protective Barrier Silent, Breathable & Cool Defend against dust mites, allergens, and bed bugs, ensuring a hygienic sleeping surface that contributes to better overall health. The waterproof barrier also prevents mold and mildew growth, promoting a clean and fresh sleep environment. They have a curved shape and will not fit on a traditional rectangular pillow. • Queen size fits our pillows that are approximately 15” x 27” • 100% Tencel fabric with a protective membrane on one side. nwt pet and smoke free home same day shipping offer welcomed