SPRAY IT ON Naturally, your jacket's going to lose it's water durability and breathability from use and dirt. Respond with the Nikwax Softshell Proof Spray-On to add life and to get your jacket back into shape. Quick and easy to apply, your jacket can regain like-new breathability and you can carry on tearing down the outdoors hiking, skiing, or whatever else you do. You just shelled out a bunch of cash for that soft-shell, now get the most out of it and extend it's life with the Nikwax Softshell Proof Spray-On.