BedCare All-Cotton Allergy Pillow Cover – Standard – Depend On The Quality Of BedCare & Enjoy The Comfort Of Cotton – The BedCare All-Cotton anti-dust mite pillow cover is made from a 100% cotton barrier fabric that is so tightly woven allergens can’t pass through. The mean pore size is 4.8 microns, making it a great bed bug encasement, too. When you zip your pillow into this cover, you know that you have total protection and cool comfort all night long. Since every encasing is made in the USA and hand-inspected, you can depend on the quality. If you like cotton, you are going to love BedCare All-Cotton! Machine wash and dry. Lifetime Warranty.