El Naturalista WAKATAUA women Sandals in Black Leather, Available in women's sizes. 3,3,4,5,6,4,7,8,9,6,7. Cow leather upper and lining Recycled rubber sole The El Naturalista brand, committed to the preservation of the planet, gives priority to the use of biodegradable materials in the manufacture of its products. They are worked in a natural way by altering them as little as possible, so that in the end we can feel their natural textures and fragrances! El Naturalista designs its products with environmentally friendly materials.