Outer: 100% Soft Brushed Polyester; Inner: 100% Polyurethane TOTAL PROTECTION: This waterproof pillow cover protects your entire pillow from liquid and dirt and therefore works as an allergy pillow protector ENCASEMENT DESIGN: Put it on like a pillowcase; This encasement protector completely surrounds each pillow with a snug fit QUIET AND SOFT: Light fabric is quiet, comfortable, and waterproof and will not change the feel of your pillow STRATOSMART BARRIER: 100 % waterproof pillow protector shields from all liquids and a watertight zipper keeps the protector securely in place 15 YEAR WARRANTY: Ensures you can protect your pillow for many years