Perhaps the most striking element of the new shoe is the 4D midsole, which has also provided the foundation for a number of memorable Consortium collaborations in recent times with partners such as KITH, Sneakersnstuff, Invincible and Footpatrol. 4D is the world’s first high-performance midsole for runners to utilize adidas’ Digital Light Synthesis technology. The result is a lattice-like construction created from light, air and over 20,000 struts that can be individually tuned to maximize control on energy return.