Our revolutionary mattress encasement fully surrounds your mattress to help protect from stains, moisture, dust mites, bed bugs, and pet dander. 100% waterproof, technologically advanced fabric provides the ultimate protection against stains and accidents.10 Year limited warranty Top Surface - 100% Polyester Sides and Bottom Panel - 100% Polyester Laminated to 100% Polyurethane Expandable sidewall to fit mattressse or box springs 12 - 17 Removable top for easy laundering V-Lock full encasement - velcro cover-over zipper enclosure provides the ultimate barrier against dust mites, bed bugs, and pet dander All sides constructed with high performance 100% polyester face fabric Super stretch for added comfort and easy fitCountry of Origin: China Finish: White Length: 80 Size: Twin XL Width: 39