Allergy Armor Ultra Pillow Cover- Queen Highest Quality Allergy Relief Bedding, Smooth, Soft & Luxurious Microfiber Breathable Membrane-Free Fabric, 100% Polyester Zippered Encasing 2.8 micron Average Pore Size, Best in Industry, Lifetime Warranty Ultra Protection against Dust Mites, Pet Dander, Mold & Other Allergens Antimicrobial Finish Guards against Stains, Bacteria & Mold