Adidas X Parley - In collaboration with Parley Ocean Plastic, Adidas' white Ultraboost 21 trainers are mindfully made from undyed mesh, stretch-jersey and ripstop using upcycled waste that's been intercepted on remote islands, beaches and shorelines. They're shaped to a round-toe silhouette with a bulbous Boost midsole that gives runners increased responsiveness and energy return during active pursuits.