The Wellness® Absorbent BREATHABLE Underpad has 9500ml capacity and Liquistay® system to ensure that the bed will remain DRY at all times. Its air flowing non-woven material allows the user to feel like they are sleeping directly on their actual bedsheets! Only 3 DRY changes are needed every 24 hours compared to an average of 5-7 or more changes with other products. This product is based on scheduled changes rather than the common approach of changing them whenever they are wet.