Not only do I use this on my Allen Edmond shoes, but also on my Omega straps. You might try it too. http://www.allenedmonds.com/shoes/shoe-care/polish-creams-cleaner/conditioner-cleaner/SF570.html Tom
There's a saddle cleaner / conditioner that works great - Hydro somethingorother. It not only conditions and cleans, it waterproofs too. EDIT: found it - Hydrophane Leather Dressing. http://www.amazon.com/s/?ie=UTF8&ke...vptwo=&hvqmt=e&hvdev=c&ref=pd_sl_959wf5by6u_e It does tend to darken the leather a little, almost like giving it patina.
I use Renapur which also works well plus smells ok. Can use it on any leather and good on vintage car seats ! I got some leather seat maintenance products thrown in by BMW when I bought my last car and they were supposed to cost £400 but this stuff is way better A friend who is biker swears by it for his leathers www.renapur.com