Created specifically for fleece, microfibers, Gore-Tex, eVENT, and just about any waterproof/breathable membrane on the market, Granger's Wash-In Waterproofing for Synthetic Fabrics takes outerwear stain and water resistance to a new level of unsurpassed performance. The easy wash-in application won't leave a residue or chemical odor on your hiking, climbing and backpacking gear. Granger's specifically developed their Wash-In Waterproofing for Synthetic Fabrics for technical all-in-one jackets with knitted liners, so you can count on consistent breathable comfort no matter how wet things are on the outside.