CONTINENTAL 80 SHOES DESIGNED WITH THE FUTURE AND PLANET IN MIND. Let's get right to it. This shoe alone won't save the world. We even put that right on the shoe. But it is a start. What does that mean? It means that these adidas Continental 80 Shoes are made with recycled materials, a non-leather upper, an algae-based midsole and natural, renewable rubber. The classic look is the same as the OG, just a different approach. Evolution is cool like that. This product is made with Primegreen, a series of high-performance recycled materials. 50% of upper is recycled content. No virgin polyester. It also features an algae-based EVA foam that helps clean at least 30 litres of polluted lake water.