Gear Aid ReviveX Durable Waterproofing for Outerwear is for GORE-TEX and WINDSTOPPER garments and all types of breathable laminates and synthetic fabrics. Works on jackets, bibs, rain gear, hats and more! McNett ReviveX Durable Waterproofing for Outerwear will totally restore and/or create DWR (Durable Water Repellency) to any outerwear that can be washed and tumble dried. For all-season comfort, just wash, spray and tumble dry. It's that simple. ReviveX Durable Waterproofing is durable, non-toxic and non-flammable. All rain wear is factory treated on the outside with a special water repellent spray called DWR (Durable Water Repellent). Over time that treatment wears off causing outer fabrics to "wet out." Though rain isn't leaking all the way through the garment, it may feel and look like it is. This is because "wet out" reduces breathability and creates excess interior condensation making you damp and cold. ReviveX water repellents are unique because they bond to both the fabric and any remaining factory DWR creating the most durable water repellent finish available.