A soft and sheer mattress protector with temperature balancing materials designed for breathability. With moisture wicking properties, more absorbent than cotton and softer than silk, Tencel helps to provide a cool sleeping surface with sheer, light weight feel. Both breathable and waterproof, the SleepMaker Tencel Waterproof Mattress Protector maintains increased protection with little to no effect on the mattresses feel and performance. Invisible protection. A fitting indicator and extra deep skirt makes this mattress protector suitable for most mattresses. Fabric: 100% Tencel top layer, PU backing.