Best waterproofer I've ever used
I've used this stuff for years on all my leather hiking boots. It's dead waterproof, easy to apply, and lasts a long time. I recently used it on my Nubuck Asolo's, and it works just as well on Nubuck as on smooth leather (even though the directions say not to apply it to Nubuck). I had tried Granger's G-tec (silicone-based) on these boots previously, but was not impressed at all. Nikwax is the only leather waterproofer worth considering.