The Cooling Mattress Pad consists of a breathable luxury quilted 100% polyester fabric that’s been treated with Scotchgard. This particular Scotchgard treatment applies a moisture prevention finish that naturally regulates body temperature and wicks away moisture, providing optimal all-season comfort. Polyester fiber fills the shell that consists of 4” diamond quilt patterns offering even fill coverage and comfort, while the fully elasticized stretch-to-fit skirt offers convenient off/on use. The finish also includes antimicrobial properties that prevent bacterial growth, stains, and bad odours from transferring, thus extending the lifespan of your mattress.