In reply to MaxWilliam:
> (In reply to Peter Eastland)
>
> I use the Nikwax Nubuck & Suede Proof, which works well if the leather is clean.
I used for three years Nikwax Footwear Cleaning Gel and Nikwax Nubuck and Suede Proof. With these products I never managed to get the boot to a satisfactory level of waterproofness.
Now I have switched to using Nikwax Footwear Cleaning Gel and Grangers G-Wax. I am much more impressed with my boots' level of waterproofness.
I imagine that you can substitute Grangers G-Max Footwear Cleaner for Nikwax Footwear Cleaning Gel; they probably do exactly the same thing. Likewise I imagine that you can substitute Nikwax Waterproofing Wax for Leather for Grangers G-Wax, which is what Deri Jones uses above.
Just make sure that you use wax. I find it much more effective than the runny liquid waterproofers such as Nikwax Nubuck and Suede Proof, Nikwax Fabric and Leather Proof, Grangers Footwear Proofer, etc.