Our naturally liquid resistant super soft felted wool pad is designed to keep your mattress or any surface protected! Made with untreated organically processed EcoWool from the USA and felted using only water, instead of the chemical additives most companies use. Great for keeping your mattress safe from liquids or stains. Although the wool used is not certified organic, we have found the wool to be of equivalent purity to certified organic wool. Minimal washing is needed due to the natural bacterial resistance and mold resistance of wool when it is unbleached like ours.