High performance waterproofer designed to enhance performance and revitalize the breathability of waterproof clothing, keeping you warmer and drier Easy to use spray-on waterproofing solution adds water repellency, revives breathability, and reduces water absorbency Recommended for rain & ski jackets, waterproof fabrics, technical clothing, GORE-TEX, Patagonia, North face, Columbia, Outdoor Research, Cotopaxi and Arc'teryx Nikwax products are PFAS-free, water based, non-persistent, and contain no optical brighteners or added scent. Aerosol-free spray & non-flammable All items must first be cleaned with Nikwax Tech Wash before waterproofing. Household detergents leave behind water attracting residues