Prototypes are repeatedly produced, innovations are accumulated, and tests are conducted many times. The Ultra Boost 21 was born in pursuit of harmony between weight, cushioning and repulsion. Experience an unprecedented energy return.

-adidas prime knit + upper -Sock-like fit

-Textile lining

-Supportive heel counter

-BOOST midsole

-Stretch web outsole with Continental ™ rubber

Style code: FY0426