Sleep with ultra-comfort and a peace of mind with the BedCare by National Allergy Cotton Allergy Pillow Protector. The specially woven 100% cotton fabric provides excellent protection for your pillow against dust mites, dust and other allergens. BedCare by National Allergy Cotton Allergy Pillow Protector features specially woven patented 100% cotton fabric which has a pore size that measures under 5 microns which offers excellent protection for your pillow against dust mites, dust and other allergens Certified by The Allergy and Asthma Foundation as meeting ASP: 02-12 Standard for mattress encasements The cool, soft breathable cotton ensures you sleep on luxurious softness This supremely soft cotton pillow protector is proudly made with no added chemicals and no phthalates Zip closure for easy on and off Standard/Queen pillow protector measures 20" L x 28" W Machine wash Made in USA