Nikwax Softshell Proof Spray-On is a spray-on water proofing solution for softshell clothing. Softshell Proof provides water-repellency and revives breathability. By using this product you can prolong the life of your gear and optimize performance. Nikwax Softshell Proof Spray-On will not affect appearance or functionality. Use this product on all soft-shell fabrics and clothing, including Gore Windstopper, Windbloc, Schoeller and Polartec. Nikwax Softshell Proof is also available in a wash-in solution. Note from Nikwax: Always check the garment care label and follow instructions Always apply this product to used soft shell clothing to keep items in perfect water-repellent condition. Remember to clean gear first with Nikwax Tech Wash before applying Nikwax SoftShell Proof (you don t have to wait for items to dry between cleaning and proofing).