Bed Bug Proof Box Spring Encasement Cover, Zippered Waterproof Protector against Allergens & Dust Mites ,King Size, by Assure Sleep By L'COZEE Microfiber Independently lab-tested to be 100% Bed Bug Proof Our easy to use exclusive TrainZip micro invisible tight zipper offers double seal technology as well as easy installation BoxSpring Encasement protects against BED BUGS, Allergens, Bacteria, Dust Mites, Mold and Mildew. Ease Asthma and other Respiratory conditions by blocking mold spores, dust mites, and other allergens that may come from your box spring Stay cool, hypoallergenic breathable Polyester microfiber knitted/stretchable super soft smooth surface WARRANTY: L Cozee offers a 10 year limited warranty from date of purchase