A collaboration with Kwasi Kessie, this special edition Kwasi x AM4Kwasi 'Blue Spirit' was introduced in 2018. At the celebrity stylist and adidas Runners Captain’s direction, the design has been updated with performance features like a fused textile upper and SPEEDFACTORY floating Torsion bar, an energy-returning Boost midsole, and Stretchweb outsole. The design is also equipped with a unique NFC chip in the tongue for authentication.