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.