Sisal is a natural fiber derived from the long, green leaves of the 'agave sisalana' cactus plant. This pouch provides a gentle exfoliation to the skin and allows you to use all of your tiny little soap slivers, so no more waste. Sisal is a naturally occurring fibre that will need to be put in a cool dry place and completely rinsed after use. Do not leave in a moist shower as the pouch will degenerate over time, hang dry and discard after 2 months.