Easy to use WaterBased waterproofing which protects feather and down fillings against loss of insulation caused by water. - Adds Durable Water Repellency - Protects the insulating properties of down from wet and damp conditions - Reduces weight gain - Maintains breathability - WaterBased, non-flammable and fluorocarbon free Easy to use, safe, high performance wash in waterproofing for down filled clothing and gear.