Braving the elements Then grab our new Rain Shield Re-Proofer spray. It creates a cutting edge DWR (Durable Water Repellent) layer on all types of technical clothing. Its a simple to use, spray on waterproofing treatment designed to restore factory levels of performance on all waterproof and breathable fabrics. It uses the latest technology to reduce the surface tension of the fabric and provide the very best waterproofing without impacting the breathability of fabrics, it also helps to protect against mud and ground-in stains. And the best bit Its safe for the environment, as its water-based and doesnt contain PFCs! Our state of the art spray on formula provides unrivalled protection within 24 hours of treatment. After application, water will bead and roll off, so youre protected to go ride in even the harshest of conditions.