Adidas UltraBoost 'Noble Red' CP9248. Released in February 2018, the adidas Ultra Boost 4.0 ‘Maroon’ features a Primeknit upper that combines seamless comfort with a striking appearance, highlighted by a mix of red and maroon yarns. The laces also reflect this two-tone design, while the molded midfoot cage and heel counter come in solid maroon and burgundy. Completing the look, the white Boost midsole and black Continental Rubber outsole follow the classic Ultra Boost design ethos.