This women\\\'s shoe features a GreenStride comfort sole, which is made using 75% renewable materials like sugar cane in a natural, bouncy foam and responsibly sourced natural rubber for improved rebound and comfort. Other eco-conscious materials used for this shoe include the premium Better Leather upper, which is sourced from a sustainable tannery rated silver for its environmental processes, and the durable ReBOTL fabric lining containing at least 50% recycled plastic. Size 4