Selleys Watershield is a 200g aerosol spray that repels water, and snow, without restricting the breathability of the material. Being an aerosol application, it is easy to use. Suitable for use on both natural and synthetic fabrics, this silicone-based water-repellent is great for use on your tent, camper trailer caravan, or even your hiking jackets and boots. Repels water, ice & snow from a wide variety of fabrics. Will not impair the comfort and breathability of the material.