I carry hat cleaner separately too, so you'll find The Bickmore Hat Cleaner for use on dark fur felt hats; a bottle of Nustraw to clean straw hats; and a can of Gard More which will help protect your hats from water and oil based stains in the first place. To breathe life back into a somewhat shapeless, but dearly loved felt hat, I'd personally recommend another product carried by Bickmore, The Hat Stiffener, from Kahl and Sons. Another item I use faithfully is Duck Back Dressing to renew the waterproofing on my oilskin hats. Made by The Outback Trading Company, the cream seals seams and also helps restore rain repellent qualities inherent in oil skin hats. Hats. No matter how old they get, you'll never stop worrying about them. Thanks for caring.