What if the best bath mat wasnt a mat at all? Never experience a soggy, dirty synthetic mat again, and switch to the Sutera Bath Stone for a transformative shower experience. Diatomaceous earth is composed of billions of fossilized sediments that accumulate in the sediment of rivers, lakes, and oceans. This natural mineral is exceptional in its absorbent and moisture-retaining properties while still being breathable and gentle on the skin. The unique porous texture allows the bath stone to wick moisture away immediately as you step onto the surface, keeping you and the bathroom floor clean and dry.