2 Dream Science Allergy Sleep System Hot Wash Pillow Protectors Size: Standard/Queen (20” x 28”) Color: White Condition: New old stock HOT WATER WASHABLE Can be washed regularly in hot water (120 'F/49°C or higher) to help kill germs and bacteria BREATHABLE FABRIC Provides better airflow for a more comfortable sleep MICRONONE®FABRIC Blocks allergens Fabric: 54% Biconstituent Fiber (77% Polyester, 23% Nylon), 48% Polyester