Natural foaming, chemical absorption, pure neutral, never harmful to skin; algae bubbles, natural breathing, good permeability, light and non-slippery, not coarse; easy to dry, good preservation, fast softening in water. It's made of a very soft sponge, quite comfortable and cosy for your daily use. The extremely smooth outer layer gently massages the skin while cleansing, removing dead skin, and leaving skin rejuvenated, healthy and smooth.