The adidas Futurecraft 4D Black Linen Green and 'Core Black' 2021 were released as part of a continued collaboration between adidas and digital manufacturing specialists Carbon. The standout feature of these shoes is the midsole, which is created using a process called Digital Light Synthesis. The Black Linen Green colorway is predominantly black with the three adidas stripes appearing in a contrasting gray, while the midsole showcases a lattice-like pattern composed of intricate lines and curves, creating a three-dimensional effect. It doesn’t feature branding other than the adidas logo placed on the tongue. The 'Core Black' reissue is a return of the original 2018 model, featuring a breathable Primeknit upper with reflective grey three-stripes and a comfortable sock-like fit. The innovative 4D midsole delivers finely tuned cushioning based on 17 years of data, finished in a Linen Green hue.