Saphir Reno works real well with Cordovan. They also have a black polish that will work with cordovan as well, and I would encourage you to use both products just as you would use them on calf shoes just posibly less often. One which is for cleaning and conditioning, and the other for protecting.
You can also use reno on the belt as well.
Do yourself a favor and conduct a search for the Mac Method.
Edited by dddrees - 2/24/13 at 4:35pm