Adidas Terrex Free Hiker Parley shoes give you the comfort to push farther and hike longer. The Boost technology in the midsole offers unlimited energy return with every stride. The adidas Primeknit fabric upper ensures a precise fit and excellent support for you to rack up the miles and enjoy the full experience. This product has been made with Parley Ocean Plastic thread recycled from plastic waste collected from islands, beaches and coastal communities preventing contamination of the oceans.