I draged out an Old can of water proofer I got AGES ago to water proof some nice shoes, never did it though, anyway I just emptied a can onto my work boots. I did this as a test to see how well it works, before the boots were ok in light rain, but got caught in some heavy rain and they got soaked

Read the instructions on the bottle after and said not to saturate the boots, just a light spray, I guess I could have done 6 pairs of boots with the can instead of one, Oh well 6 times as water proof I guess :p
The boots are some Steel caped Bacta boots, pretty good and stong as I work 8 hours a day in them and not easy work, no idea if bacta make hiking boots, somehow I don't think so, anyway My boots are rain proofed now if I ever get caught in the rain at work, or on the way to work as I walk to walk every day.
Might have to use them as My hiking boots for a bit if I don't get off my butt and get a proper pair, nice they are water proofed now at least.
Cheers.