Futuristic and functional, you'll be a step closer to a better planet in the adidas by Stella McCartney Sportswear Shoe. Inspired by nature, the shoe is crafted in part from natural and renewable materials. A sock-like upper is set atop a cool, chunky midsole for ultimate comfort and support with every step. Pared-back hues and a fashion-forward silhouette means you can easily incorporate them into your everyday wardrobe, too. This product has been made with at least 20% renewable materials. Switching to renewable material sources offers more options to reduce our reliance on finite resources. We choose renewable materials because they are natural resources that can be planted and grown again. This is unlike fossil fuel based materials, which once used, we cannot replenish. Renewable materials are not only natural materials, but also bio-synthetic materials that have a plant feedstock instead of fossil fuel. This feedstock is chemically processed into intermediate substances and is turned into synthetic materials in the end.