This adidas Ultra Boost 2021 starts off with Primeblue on the upper, a high-performance recycled material made in part with Parley Ocean Plastic. 50% of the upper is textile, 75% of the textile is Primeblue yarn. White dominates the upper, three stripes branding, laces, and inner liner for a clean summer-inspired look. For contrast we see a grey heel counter, a silver/iridescent-like Boost midsole, and a Continental rubber outsole that comes with pink detailing.