Nikwax's Fabric and Leather Spray On Waterproofer adds a water-resistant coating to fabric and leather footwear. It's safe for use on products with waterproof membranes like GORE-TEX and it's easy to apply. Nikwax Fabric and Leather Spray helps rejuvenate the DWR on old worn shoes or it adds a protective coating to new ones. This spray is water-based and fluoro-carbon free. Features: 4 oz bottle Adds water-repellency to fabric and leather footwear Safe for products with membranes such as GORE-TEX eVENT etc. Easy to use Water-based fluorocarbon-free non-flammable biodegradable Application Instructions: Brush off dirt with a damp cloth / clean footwear with Nikwax Footwear Cleaning Gel Spray proofer evenly to outside of footwear After 2-3 minutes wipe away surface with a clean cloth and allow to dry before use. Note: For light colored leather always test on a hidden area first. To maintain the original surface texture brush with a fine suede brush when the leather is dry. To dry never place in a confined hot area near radiators and open fires Make sure to put newspaper in the toes of the footwear to maintain shape and remove moisture from the inside while drying.