Polypropylene backing helps keep under pad in place</br>Absorbency Level: Super</br>Absorbent Material: Fluff and Polymer</br></br>Product Description</br></br>Protection Plus Disposable Polymer Underpass feature a polymer and fluff core that provides absorbency. Choices of sizes and weights to meet every need.</br><br/>http://www.amazon.com/gp/product/B002NHIFNW