The adidas 4DFWD ‘Black Solar Red’ delivers finely tuned cushioning in a sustainable package. The running shoe’s black Primeknit upper is made in part with recycled materials and zero virgin polyester. A sock-like elastic collar delivers a snug fit, while interior cables are integrated into the lacing system to provide a feeling of midfoot lockdown. The lightweight build rests on adidas’ revolutionary 3D-printed midsole, updated with a bowtie-shaped FWD CELL lattice structure that delivers running economy comparable to the UltraBoost midsole.