It is the responsibility of the consumer to ensure the Durable Water Repellent (DWR) is maintained and reapplied as needed to ensure its ongoing effectiveness. See the detailed case instructions on our website for guidance on how to care for waterproof products. Water which is no longer beading up on an old or heavily worn garment, even after application of a new DWR treatment, is an indication that the garment has reached the end of its useful life.