Regular household detergents leave residues on garments that damage the performance of H2O repellant Completees (DWRs). ReviveX Synthetic Fabric Cleaner's concentrated formula is ideal for cleaning all types of H2Oproof breathable garments, technical outerwear, synthetic-fiber fleece and insulation. It goes a long way, this 12 oz. bottle is enough cleaner for over 20 garments or six sleeping bags. Use: For cleaning apparel with a H2Oproof membrane or coating we recommend that you hand wash only.