Organic cotton (GOTS) soap bags from "The Sage", a small sustainable company based in Romanshorn, Switzerland. These bags are softer than some other bags I have used and are nicer to use directly on your skin. 
Extend the usability of your soap, recycle soap residues and enjoy a gentle peeling effect. 
The bag can be hung up in many places thanks to the extra long pull cord and is suitable for many soap sizes.
Cotton pads, hair ties or the like can also be stored in the bag.
100% plastic free and completely compostable at the end of it's life. Even the attached label is made with paper and vegan inks.
 
Make sure the soap sachet is allowed to dry well between uses. This will extend the shelf life of your soap and bag.