The WashSafe™ is a truly unique washing bag that you can use to safely machine wash wool, cashmere, possum, alpaca, mohair, angora, silk, camel and all other natural fibres that are usually associated with hand washing. You can even wash leather in it! The bag is unique in its construction and allows soap and water through, but does not allow agitation, that is the main culprit of shrinkage. You can also wash your Colours and Whites in the same machine wash and avoid colour runs. It is also excellent at protecting your delicate items like underwear and sports clothing, protecting them from pilling, fading, colour runs and ageing. The bag can be used over 80 times.