Revivex Durable Water Repellent Spray will restore the DWR coating on your waterproof breathable outwear such as rainwear, jackets, pants, gloves, boots, waders and nylon tent flies.  While many fabrics are treated with a DWR finish in during the manufacturing process, this coating can wear off over time and you may begin to notice the outer surface of your jacket 'wetting out' and getting dirty.  To restore the DWR finish, wash your garment with a technical fabric cleaner, such as Revivex Pro Cleaner, spray on this DWR treatment and allow the garment to air dry completely or, toss in the dryer once the garment has air dried to heat set the treatment.  This treatment is designed for use on technical fabrics including eVent, NeoShell, and Gore-Tex and is free of PFOA and PFOS.  If you are looking for an instant DWR treatment, consider Revivex Instant Water Repellent..