I use saddle soap on my leather boots, but have only used Proofide on my saddle. I did, though, wonder if the saddle soap would work. I suspect that you'll be fine. I just wasn't willing to take the risk. One product to be wary of is mink oil. I learned the danger of mink oil early on, by ruining a pair of boots with it. Mink oil will soften leather to the point that it loses all shape. Stay away from it.