Despite being called a sponge, all the materials to manufacture the Hydrea London Bamboo and Loofah Exfoliating Sponge come from plants.
First, the actual sponge is made using the fibers of the mature fruit from a climbing vine called the loofah, which is a fine alternative to both sea sponges and the artificial materials used to imitate them.
Second, the fabric surrounding the sponge is made using bamboo, which is famous for being a fast-growing source of textile fibers and other useful materials.
These materials combine to render this EU-made sponge a professional-grade product for the purposes of exfoliating the skin and massaging the sore muscles right beneath.