Nikwax Down, Down DUO-Pack, 300ml, Wash-In Cleaning and Waterproofing adds DWR Water Repellency to Down Filled Jackets, Outerwear, Sleeping Bags, Restores and Protects Insulation and Loft

I highly recommend this particular product for washing your down jackets and coats. It may be a lengthy process, but it is worth it. My coat came out soooohhh nice. First I washed my coat and then I washed again with the treatment only. I dried my coat on the lowest setting with tennis balls, adding one specifically in the pocket of the coat to help to tug the coat...and it came out really nice. Note worthy, I used less than the recommended amount of the product and it still came out very clean.

This stuff works really well, but you have to have some faith in it. When I first took my inexpensive down backpacking quilt out of the dryer all of the down was clumped up and I was pretty sure I'd ruined it. I broke apart the clumps with my fingers and as it dried the loft came back better than before.With that good result I washed my expensive quilt, instead of picking apart the clumps I put it in the dryer with a bunch of tennis balls on the no heat setting. It took quite a while but it dried just fine and I didn't have to spend all of the time picking the clumps apart.The moral is don't give up on your down until it is fully dry....

This worked great to clean and refluff a 40 year old down sleeping bag.

It works well. There might be some residue though that feels a bit weird on fingers

I have a waterproof down jacket that I love, but that had gotten dirty over the years from multiple camping and ski trips. The waterproofing had worn off some so I was hoping this detergent would help bring it back t life. Instructions were easy to follow and while it did take a while to run 2 wash cycles, the results after I got the jacket fully dried were great. The down got re-fluffed in the dryer (no clumping), and the waterproofing was great - ran some tests running the sleeve and hood under a faucet and it slid right off. Definitely recommend this product if you've got down outdoor clothing or a down sleeping bag.

I’ve been buying this product for 30 years. It is the only product I use on my down coats, down, comforter, down, sleeping bag… Anything with down insulated that I own. Highly recommend this, this is the correct way to take care of your down products

Used it to wash my REI magma sleeping bag. Restored loft and looks like new again. Easy wash in front loading machine, then used dryer and done!

Works as it says it will. Nice.