Nikwax Fabric & Leather Proof is a high performance waterproofer designed for all fabric and leather footwear. Recommended use on smooth leather, fabric, or GORE-TEX shoes, boots, and gloves. Water based, biodegradable, non-flammable, and contains no PFCs, VOCs, optical brighteners, or added scent. Details: Clean first with Nikwax Footwear Cleaning Gel for best results 125 ml/ 4.2 oz Spray-on application Revitalizes breathability Adds water-repellency to fabric, leather or combination footwear.