All in One Washbag is a zip closed bag made from a unique semi-permeable fabric that allows dissolved soap & water through but locks dyes out. It protects delicates, wool & handwash garments allowing you to machine wash them safely. The bag also prevents garments from fading, felting & shrinking. Product Highlights Protects from colour loss & bleeding Allows handwash items to be machine washed Wash light & dark items together Guaranteed for up to 50 washes