Linenspa Hypoallergenic Waterproof Mattress Pad with Breathable Quilted Microfiber Cover - Full Microfiber Soft, hypoallergenic microfiber fabric over a noiseless waterproof barrier offers quiet and comfortable mattress protection Vinyl-free, 100% waterproof membrane is breathable and completely blocks, fluids, spills, accidents, dust mites and allergens Hypoallergenic layer of down alternative fill is quilted for smoothness and breathability Fits most mattresses - thick elastic corner bands secure pad to mattresses up to 18" thick Full mattress pad measures 54" x 75"