Twin XL- 39"x80"+15". 100% Polypropylene, Nonwoven Antibacterial, 100% encasement, Zipper closure. Care Instructions: For best results spot clean,machine wash cold, gentle cycle only. Tumble dry low, do not iron, do not bleach. Permafresh Features and benefits: Water Resistant, Antibacterial Protection, Anti Dust Mite, Anti Bed Bug, Anti Mosquito, Tics and Flees. Bio Degradable, Eco Friendly, ...