Nikwax Down Clean/Waterproof DUO-Pack Down Wash and Down Proof packaged together to clean and waterproof your down products. Down Wash is a safe, soap-based cleaner that maintains the loft and insulative properties in down filled garments, sleeping bags, duvets, comforters. Down Proof adds water-repellency to down and shell fabrics of down filled clothing and sleeping bags. Easy wash in application Water based and Biodegradable. Contains NO flourocarbons (PFCs) and NO VOCs