Formulated for cleaning natural fibers found in wool, silk and cotton, Granger's Natural Wash Plus is a fully-biodegradable cleaning solution that gently cleans your casual and outdoor clothing without fragrances, whiteners and perfumes. It also completely rinses away without leaving any sort of residue. Pair Granger's Natural Wash Plus with their Wash-In Waterproofing for Natural Fabrics and you'll have the perfect weather-ready combination for hiking, camping and backpacking.