Sno-Seal is a natural wax mainly the beeswax which provides a shield to the boots making them waterproof. As it is all-natural it will not rot or break the leather or make the stitches lose. Sno-Seal darkens the leather, so it is suggested not to use them in suede or nubuck leather because somehow, the Sno-Seal affects the leather’s fiber and changes the boot’s look.