It's crafted in the USA out of leather that's been veg tanned the old school way. The age-old process is done by hand by seriously skilled craftspeople, using natural ingredients like chestnut bark. Because of the natural tannins, vegetable tanned leather develops an extra rich patina that only gets better with age. Plus, it's environmentally friendly. It takes much longer, requires a ton of skill, and is more expensive to produce, but it wears in to a much richer patina than chemical tanned leather does — which makes for one hell of a belt.