Protect your pillow at all times with the Dust Buster All-in-One pillow encasement with new breathable technology for comfort. Provides a powerful protective barrier against dust mites and other allergen irritants. total encasement system features triple-seal closure, heavy-duty seams and interior barrier flap family and pet friendly, working without poisons, chemicals or odors breakthrough fabric is a tightly woven breathable easy-care construction blocks allergy, down and dust mite particles down to 1 micron in size cover is stain and water resistant 200 thread count Polyester. Washable. Imported. Standard/Queen: 20x28 King: 20x36