Nikwax Footwear Cleaning Gel cleans all types of footwear. Cleans shoes and boots while while maintaining existing water-repellency. Detergent free cleaner for smooth leather, nubuck & suede and textile footwear. Works for fabric/leather combinations boots and shoes. Ideal for all types of footwear, any material and any combination; sports or leisure, Safe to use on footwear with breathable membranes e.g. Gore-Tex, SympaTex, eVENT etc. 100% Water based and Biodegradeable. Contains NO flourocarbons/VOCs. Nikwax..Easier, Safer, Drier.