Note- Cleaning and conditioning leather will inevitably darken the color over time. If you have a very light leather and want it to stay that way, there are specific products available. Check with your local shoe shop or tack store.
Step 1: Gather tools
Glycerin soap or a mild, moisturizing soap such as Dove
Oil for conditioning, see note below*
Rags and/or sponge
A soft bristle brush if the leather has a lot of dirt/debris on it
*Note-The oil you use can be linseed oil, 3-in-1 oil, olive oil or a prepared leather conditioner. The 3-in-1 oil I use in the demo is petroleum based. Never use a petroleum based product on leather that has been stitched as it can degrade the thread. Instead, use a vegetable-based oil. This leash has no stitching so it is safe to use in this case.