The 600 TC cotton damask striped surface and box stitched quilting add functionality and appeal to the Quilt Tite® mattress protector. It’s filled with a down-alternative to create an air layer for better circulation, breathability and comfort. Combined with the air layer, laboratory-certified H2Pro™ liquid-proof membrane adds a protective barrier against allergens, dust mites, and liquids. The universal fit elastic guarantees a secure fit for mattress depths 6″-22″ and gives five sides of protection for your mattress top and sides.