For that I have used both of these agents. Gentle cycle, 30 degrees, on the right, stuff in Weichspülfach. Suspended for drying, because we do not have a dryer.
Today I have the jacket, after drying the first time again. Fits the rain. However, nothing is run off with, zero, the jacket is damp, the water moves in. To me now is cold in the jacket, which suggests that other promised benefits are also not arrived.
So I would never buy again, because it keeps what it promises nothing. Pay now use waterproofing spray and bring me the manufacturer a brand recommendation. But the jacket was far too expensive :(