The Paul Lashton premium repellent is specifically designed for organic fibers and creates an invisible, durable protective barrier over your Panama hat that effectively repels any water. Also included is the Paul Lashton cleaning brush that is made of genuine horse-hair to provide effective cleaning of dirt and grime as well as overall longevity of the brush. The bristles are 100% mane hair (instead of tail blends), which has minimal shedding and is soft enough to use on delicate straws. Works great with felt and wool hats as well. HOW TO USE 1. Brush off and clean any dirt or dust on the hat. 2. Holding the bottle upright, evenly spray entire hat from 6 to 8 away. Do not oversaturate. 3. Allow hat to dry for at least 24 hours. A second coating if you require a stronger stiffening effect.