This adjustable mattress cover is waterproof so it protects your mattress from moisture and dirt. Composed of authentic microfiber, it has a silk touch of maximum softness. Filled with virgin hollow silicone fiber which increases comfort and improves absorption. It comes with the Oekotex Quality Hygienic Certificate of the Aitex textile laboratory, rest safe and clean. It keeps the mattress protected for its perfect preservation. Anti-decay barrier. It is adaptable to mattresses of 190 and 200 cm, with a side of microfiber fabric with rubber around its perimeter, adjustable to mattresses up to 30 cm in height.