This is the best Waterproof spray that I have ever used. I have sprayed boots, jackets and shoes and all of them repel water. Sprayed an expensive suede and lamb leather jacket and there was not change in color at all.
Solid product. Ordered a couple more for my bathroom.
I just opened it and tested it out on a napkin. I poured water over the napkin and it just dripped off. Not a single bit of water was absorbed into the napkin. I then became curious and poured honey onto the napkin and the honey dropped off without being absorbed into the napkin. This stuff is really hydrophobic. I just sprayed it onto some velvet shoes so I don't have any experience yet with the shoes but judging by the effect on the napkin this stuff is superb.