Give a nod to two icons at once on these adidas shoes: tennis champ Stan Smith and Disney's Kermit the frog. Stan brought us the classic style that pairs with anything and fits in anywhere. The green amphibian? He's here as a reminder that even though it's not easy being green, it's important. In fact, we could all be a little greener. These shoes make an effort by swapping out classic leather for recycled materials. This product is made with Primegreen, a series of high-performance recycled materials. 50% of upper is recycled content. No virgin polyester.