Normal wear will darken the leather as air, light, the oils of your skin, and other environmental factors do their work, developing a rich color & patina
Vegetable tanned leather refers to the tannage, or method of tanning the cowhide into leather. It’s called «vegetable» because of the natural materials used in the tanning process like tree bark. Vegetable tanning or veg tan as it’s sometimes called, is one of the oldest methods of tanning known to man.
Vegetable tanning process is much more environmentally friendly than chrome tanning. The leather gets wonderful aging-qualities with the ability to develop a rich patina with time and use. It feels organic and alive. It has durability and strength. It is irregular and unique in a natural way, with genuine aesthetics.