The adidas UltraBoost 2021 Core Black/Violet Tone blends sleek performance with modern style. It features a Core Black Primeknit upper for adaptive support and breathability, complemented by Violet Tone accents on the heel and branding for a subtle pop of color. The full-length Boost midsole delivers responsive cushioning and energy return, while the LEP torsion system enhances stability. Finished with a Continental™ rubber outsole for durable traction, this UltraBoost 21 is built for both performance running and everyday wear.
