Evolon Mattress Protector | 12" King Zippered Mattress Encasement | Sleep Safe ZipCover

100% Polyester Made in the US and made of Evolon. The award winning German engineered Evolon offers 1 micron filtration using a microfilament technology, creating a physical barrier against very small things Evolon is made using an eco-friendly process and because of its large internal surface area, it can absorb 400% of its weight in water and dries very quickly. Sleep Safe ZipCover Evolution mattress encasements provide protection to make you sleep well. Sleep Safe ZipCover Evolution mattress encasements provide protection to make you sleep well.