Bridle Leather Belt How Can I Soften My Leather Bridle?

How can I soften my leather bridle? - bridle leather belt

My strap is really hard. I have refrained, at the barn, and seems in good condition by the fact that so loud you can hardly turn. YesterdayI washed the dirt with a damp cloth and leather thorouighly then clean again, but still hard as stone. What can I do to make it more offers? Suggestions on products or methods?

Thank you!