Sustainable sneakers that can still stunt? The adidas Ultra Boost 4.0 Parley Carbon prove it is possible. With a Primeknit upper consisting of 85% Parley Ocean Plastic, an innovative material created from upcycled waste, the shoe is literally and figuratively green. The shoes also feature BOOST tooling, Continental rubber outsole, and an NFC chip in the right shoe providing exclusive info about plastic pollution via your smartphone.