With the stretchiness and comfort of a more traditional Primeknit Ultra Boost runner, the adidas Ultra Boost Uncaged Parley has been crafted using 5% polyester that's been recycled and 95% recycled ocean plastic. adidas made this shoe in collaboration with the worldwide environmental organization, Parley. The sustainable and conscientious Parley adidas Ultra Boost Uncaged features an upper of recycled white Primeknit. Perforations dot the toe box, while larger perforations hit the inner side panel, offering ventilation and comfort. Flat white laces over the midfoot and the padded ribbed collar help enhance a snug fit. Gray webbing forms a vertical heel tab that sports silver dual branding. The white midsole is formed from thousands of Boost capsules, offering a springy, propulsive stride. This sneaker rides on a white Continental rubber outsole designed with Stretchweb technology for flexibility as you run. Our favorite detail on this sneaker is the woven heel counter with aqua-colored stitching, reminiscent of the ocean. The adidas Ultra Boost Uncaged Parley was released on November 15, 2016, for a retail price of $200.