High-performance waterproofing agent from Nikwax to refresh the DWR (Durable Water Repellency). Maintains water repellency & breathability, which extends the life of your ION Shelter Jacket 3L.
Just add the waterproofing to your hand or machine wash (shake beforehand).
Nikwax is naturally free of fluorocarbons (PFC), propellants and solvents.