The Granger's high-performance Down Wash is formulated for use on all down and synthetic filled clothing and equipment. The thought of washing a Down jacket worries a lot of people. As long as the correct cleaner is used washing is straight forward. The key is to make sure the item is completely dried after washing. Normal household detergents are extremely harsh and leave behind perfumes and other contaminants that work against the wicking or breathable features. With Down this can also strip out any natural oils still remaining which can further reduce loft. Merino might be great for not stinking after a few days on the hill but it’s a natural firbre and still needs to be looked after. Normal household detergents are extremely harsh and leave behind perfumes and other contaminants that work against the wicking or breathable features. The Granger's Merino Wash uses the same base formulation as their Performance Cleaner with the addition of Cedar extract, a known moth repellant. The Merino Wash has a unique blend of ingredients so you can be sure your clothing is clean, even at low temperature washing.