Black leather ballerinas for women with recycled TPU outsole. Better Product: The leather is certified by Leather Working Group, a coalition of brands, suppliers, retailers, leading technical experts, and NGOs aimed at raising environmental standards and ensuring best practice standards for tanners, manufacturers, and retailers. 20% of the outsole is made of recycled TPU, which helps to scrap waste and reduce the carbon footprint emissions going into a more conscious environmental impact, keeping the same performances and standards of virgin TPU. Our feminine Casi Myra line boasts a timeless design with a slightly squared shape.