What is the name of the product that makes horse riding saddles shine like patent leather?
A product called “Neat-Lac” (or Neat-Laq). This is a product that is sold or was sold by TANDY LEATHER. It is a paint on wax/lacquer type liquid that provides a protective coating and a high gloss shine. I don’t know how well it will stand up to a pair of denims but it worked well on my holster and police duty belt.