So a year ago, my (getting on a bit) goretex lined fabric walking boots started leaking. Not badly, but definitely wet feet.
So having done a bit of research, I got some spray on Grangers stuff, used as instructed, and hey, presto - dry feet again. The Grangers just reinvingorated the DWR coating, and the water just beaded straight off again.
This year, they've started leaking again, so I've repeated the process. It's made things better, but the area around the ball of my foot where the boot gets flexed most, still wets out very quickly.
What have I done wrong? Not enough Grangers? Or are they just past their sell by date?