We collaborate with a tannery based in northern Italy at around 70km from our workshops. From the choice of the raw material, to the processing up to the final product. At every stage of our work we pay special attention to sustainability by selecting hides deriving only from the food industry and we do it in compliance with the most stringent regulations in terms of chemical risk and environmental impact. We expertly use chemicals supplied only by accredited companies so that the final products meet the requirement of eliminating the chemicals that are considered harmful to man and the environment. 
All our leather is EU reach compliant (REACH). Our calf leather is tanned at a LWG certified partner. 

We only use Calf Full grain leather for making our bags. It is the top layer of the skin. It has kept its original surface and thickness. This is the most noble material and the softest to the touch. It is this leather that we use. The lower part of the skin is called Leather Crust. It is often covered with a layer of plastic imitating leather. It is found on low-end leather goods and not on Ateliers Auguste items.

After being cleaned, the skins are tanned to make the leather rot-proof. The skins run with water and tanning agents in large barrels called fullers. We chose mineral tanning made from chromium salts to make it supple, elastic and resistant to water and light. 

Many mechanical tests are carried out in order to guarantee the leather a durable and irreproachable quality.