Olive leather - Wet-Green - O'leaf tan
Olive leather is tanned with tannins made of olive leaves. Extracts with a tanning effect are obtained from the leaves by extraction and evaporation. The tannin is in liquid form. Olive leather is generally free of chromium, but is re-tanned synthetically or by using a vegetable tanning method
So far, olive tree leaves have not been used economically. 12 of the 15 million tons of olives harvested annually come from Europe. In Europe, approximately 1 million tonnes of olive leaves and 30 million tonnes of olive residues are produced annually. Enough for the tanning of approximately 600 million square meters of leather, which would be about 40% of world production. So far, these residues have been burned.
In 2012, olive leather was presented to the market. In 2013 it was already processed for shoe leather, clothing leather, bag leather, furniture leather and car leather. In 2013, olive leather was used as a pigmented variant in the BMW i3. Also in 2020, the BMW i3 Urban Suite models had a leather interior with olive tanning.