Leather is mainly a by-product of the meat industry. A lot of good qualities go along with it, and a few benefits of this material are:
# hypoallergenic
# robust, strong & durable
# breathable
# lasts for years, even for generations
# is fully biodegradable
# gains patina with age which gives character & depth
There are several types of leather, and so are its origin and quality. The difference between sustainable and unsustainable leather lies in how the leather is processed. 
We work closely with two Premium Leather Manufacturers, which both run their businesses in 5th generation, in Germany and Italy.
If you want to know how to care for your material and product to make it last, look at our CARE GUIDE.