That NikWax is the right stuff. I have used it for a long time with my Cabela's Guide wear rainsuit and that suit still keeps me dry after seven years. I use that suit mostly for freshwater boat fishing and I have Grundens for the salt.

I also own a Cabela's wading jacket, which I also clean and treat with NikWax. I fell in the upper Chilliwack River one year with that jacket zipped up and over my neopremes. I floated like a boat and stayed dry.