Protecting your mattress has never looked better. This mattress cover features a knit design. The elastic skirt is designed to hug the mattress tightly, allowing for less adjusting and a better night's sleep. Not only does this mattress protector keep oils, dust, and allergens off of your mattress, but it is also waterproof and temperature-regulating. Infused with nylon and a cooling fiber, it will help your bed remain cool to the touch longer.