How do you remove a sour smell from a leather seat?

How do you remove a sour smell from a leather seat?
The most effective way to get a sour smell out of leather seats ina vehicle is to first extract the seats with a strong alkalinecleaner. After that, you should extract again with a acid basecleaner to neutralize the alkaline. For best results, remove theseats from the vehicle before doing the cleaning and allow them tosit outside to fully dry.