High performance waterproofer designed to enhance the performance of wet weather cotton and polycotton items. Easy to use in the washing machine or by hand, non flammable and PFC free. For waterproofing cotton:- Easy to use wash-in waterproofing for all cotton, polycotton, canvas clothing and equipment Adds water repellency, revives breathability and reduces water absorbency Enhances the performance of your gear, keeping you warmer and drier Recommended for all cotton and polycotton clothing and gear