Amazon.com: Fiebing's Edge Kote Black Leather Paint (4oz) - Leather Edge Paint for Shoes, Furniture, Purses, Couches - Flexible, Water Resistant, Semi Gloss Color Coating Leather Dye to Protect Natural Edges :
Leather Edge Finishing Explained! — Leather Beast
Leather Edge Finishes - Full Grain Creations
Leather Edge Paint: Dark Brown
These are the edges produced by master craftsman Niwa Leather. What is this kind of edge process called and how can one achieve this while trying to keep the wallet thin too? :