The partnership between Parley and adidas carried on their sustainable shoe project in 2017, unveiling the Ultra Boost 4.0. Embracing an ocean-inspired aesthetic with a blend of blue, black, and white hues, this footwear masterpiece is constructed primarily from recycled materials collected from coastal communities and beaches. To add a touch of contrast, the tongue features co-branding, while the midsole and outsole combination are presented in a clean white shade.