A wee spray on this and instant magic. The magic being a lovely waterproof coat on your jacket or your bag or even your cat (We advise against that last one because the police will be after you along with your cat). Really though, Fjallraven have made a lovely product here that works well, making the PFC-Free Eco DWR Impregnation easy to recommend! Fjallraven PFC-Free Eco DWR Impregnation PCF-free spray-on treatment for the reimpregnation of shell garments Gives a highly-water repellent surface and optimizes breathability of waterproof/ breathable apparel The active agent is biodegradable Weight: 100g Description by Cameron