Small cotton sisal bag that keeps soap dry in between uses to prolong the life of the bar. It can also be used to gently exfoliate the skin - however this could lead to using more of the soap than is necessary given Desesh products tend to lather generously without much assistance. The loofah is therefore a better alternative for exfoliation. Keep the soap saver bag hung between uses to allow water to drip off! Please note also, like many of our products, this item arrives with no individual pre-packaging to reduce material waste for a more sustainable supply chain. We use paper and cardboard packaging and dunnage to ensure it is shipped safely. Not using plastic packaging and minimal usage of other biodegradable / recyclable packaging is a key part of our mission as a brand of sustainable personal care and home products.