So I (although only 4) intended due to the positive reviews, I could test this product times. But until now, it was a waste of time and money. I did it exactly as the instructions (with washing machine) and none of my jackets now has more a trace of water repellency. I have the impregnation even carried out a second time, but again without success. I even ironed the jacket because it contain something to look even better. But unfortunately, no. With the last bit of the agent I will now try a manual wash, if the does not act, I will contact the manufacturer. If it works, I will of course update the review.