These Leather Sneakers Were Tanned Using Leftover Olive Leaves
Fungi. Milk. Coffee grounds. Nat-2 founder Sebastian Thies is certainly no stranger to unusual footwear materials. Now the German shoemaker is at it again, this time with “olive leather,” a form of leather tanned using olive leaves left over from the harvest. The material, known commercially as Olivenleder, is part of a new line of…