Nikwax Fabric and Leather Proof - Easy to use waterproofing for fabric and leather footwear. Waterproofs, maintains support, texture and breathability of all combination footwear. Regularly apply this product to used footwear to keep them in perfect condition. Great for all fabric and leather combination footwear (work, fashion, leisure, and sports). Safe to use on footwear with breathable membranes e.g. GORE-TEX®, SympaTex, eVENT etc. Light/colored fabric and leather may darken after treatment. Test on a hidden area first. Adds water repellency. Prolongs life and performance of all fabric and leather combination footwear Ideal for footwear with breathable linings e.g. Gore-Tex Can be used on wet footwear Easy to apply - available in spray-on or sponge-on formats. Can be used indoors unlike solvent based sprays Does not contain fluorocarbons