White cotton terrycloth mattress protector with a thin waterproof polyurethane layer. Since it is 100% waterproof, it protects the mattress from liquids and moisture, while its high level of breathability allows air through. It is an adjustable half cover, making it easy to place The corners are adjustable with elastic to ensure the protector fits perfectly on the mattress. Suitable for mattresses up to 15.7" deep. The protector comes in a bag, allowing for convenient transport and storage.