100% Biodegradable Cleans + Wipes. Normally, things with nudity might not be appropriate for all audiences. In the case of the Naked Sponge, that couldn't be further from the truth. Because by naked, we mean without chemicals, colors, and any of the adulterated stuff you might find in traditional sponges. And all this naked cleaning power comes in three sizes. So please feel free to show these to your family and friends without risk of offending anyone.