Cleaning agent for down products. Nikwax Down Wash cleans efficiently and gently, and restores thermal insulation and water repellency to hydrophobic down suits and sleeping bags. It also improves the water repellency of ordinary (untreated) down and maintains the water resistance of the outer fabric of the down garment. Used in a regular home washing machine. Nikwax products are easy to use and ecological. The products are water-based, non-flammable and safe to use at home as well. They do not contain PFCs, propellants or any harmful solvents. Environmentally friendly and biodegradable. You get the best result when you first clean the garment with the green Nikwax product, and saturate the cleaned garment with the purple product.