Formulated specially for cleaning synthetic base-layers, the Nikwax BaseWash is perfect for refreshing all synthetic fiber garments; such as socks, running attire, and travel clothing. Easy to use, a simple washing machine application removes odors, revitalizes wicking properties, and helps quicken the drying process. Environmentally friendly, this treatment is biodegradable, non flammable and non hazardous. Features: Water Based: environmentally friendly, biodegradable, non-flammable, non hazardous, does not contain fluorocarbons. Use with synthetic base layers, socks, travel clothing. BaseWash refreshes and removes odors. Enhances and revitalizes wicking properties. Helps fabric to spread sweat and dry quickly, keeping you more comfortable in all conditions. Increases breathability. Easy to use: can be applied in a washing machine.