The easy to use safe high performance technical cleaner for hydrophobic and regular down filled clothing and gear dirt and body oils will contaminate the down causing it to clump together and loose loft dirt also attracts water and reduces the beading up of droplets on the fabric s surface wash the garment in nikwax down wash direct the use of other detegents can leave water attractive residues that will not rinse out they also contain agents that can wash away the natural oils of the down never