The Parley x adidas Ultra Boost LTD is a symbol of adidas's commitment towards selling more environmentally-conscious products. In partnership with Parley for Oceans, the Ultra Boost features a full Primeknit upper that is woven from yarn made from plastic collected from beaches. At first glance the sneaker looks white, but upon closer observation you’ll see blue yarn woven throughout. Wavelike blue stitching covers the heel counter, and the Adidas Ultra Boost LTD is finished with a white Boost midsole and rubber outsole.