Great info! I had always assumed that suede was not good at water repellency. Also, what is the difference between suede and split leather?
What kind of oil do you use? All I ever see in "how to care for" instructions for suede is the spray. I don't want to use that.
The Steger's seem to have the warmest claim.
I wouldn't wade through water, but the reason I have to ask is that, many times, I've been walking/snowshoeing and have had my boot dunk in water a few inches (quickly in and out) when I stepped in an area that was marshy under the snow. It has to at least be able to handle that, and not wreak the boot.
The reason for the silicone spray on suede is that it will not destroy the appearance of the nap, oil and grease will. If appearance is not an issue, you can use these products on the suede leather. I use mink oil for many of my leather items and it works well. When I first get the item, I will oil it once a day for 3 days before wearing or using it, then again about a week later. After that depends on how often I use it, what I use it for, what its exposure is to the elements, etc. There are many other fine products out there too.
Don't try to purchase from Tandy though, they are way overpriced on everything and their customer service is really a sales force. I buy my products from Springfield Leather but that is because I can go into their store when I am in that town. Any good leather store will have a fine selection.
If you cannot find one, here is the link to Springfield Leather cleaners and conditioners page:http://springfieldleather.com/9/Cleaners%2C-Conditioner%2C-Tanning/
Edit: Old timers talked about bear grease (yes, grease rendered from harvested bear), but I have never seen it or used it. They always said it was the best for boots.