This wallet is made from vegetable tanned leather. Colors and textures have a more natural and organic look. Being an entirely organic material, vegetable tanned leather will change over time. It will grow softer and darker, and will acquire a patina depending on its uses. And it does not have any harmful chemicals, so you can carry it in your daily life without concerning about your health. Besides, it has great durability and strength, and can last you for a very long time!