If your favorite felt hat has gone limp over time but you still love to wear it, you need a good product to help salvage it. Bickmore’s Kahl hat stiffener is the perfect solution. It is a spray hat stiffener that comes in an eight-ounce spray bottle. The stiffener is made up of high quality ingredients and is meant to specifically restore the shape of your felt hats so that you can go back to wearing them with confidence. It is easy to use. Spray the product on your hat and then let the hat sit for several hours or overnight to ensure the stiffener works its magic.