To prevent cotton fabrics from absorbing water Durable Water Repellency (DWR) can be added by applying Nikwax Cotton Proof. Nikwax Cotton Proof™ is a must have for people who enjoy outdoor pursuits. Whether you have a fisherman's smock, a cotton or polycotton jacket or a canvas tent, it will provide Durable Water Repellency (DWR) to prevent water absorption and weight gain.
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