In an interview I had with Bob prior to the release, he also mentioned that the final bowtie-shaped FWD cell lattice was picked from 5 million different variations, which then was narrowed down to 10,000, which then was further processed down to 25. According to Bob Kirk, Senior Director/Future Footwear Innovation at Adidas, this high midsole drop compliments the lattice structure the most and enables runners to move faster and smoother.

And in all fairness, the actual running platform is in an angle: the Adidas 4dFWD has a 11.3 mm (!) midsole drop, 21.2 mm under the forefoot and 32.5 mm under the heel. The new midsole is constructed from bowtie-shaped FWD cells that redirects impact force and creates forward motion.īasically, as the lattice is compressed, as opposed to bouncing back up, it moved forward diagonally, like if you landed on a surface that's in an angle. This lattice construction is made of 39% bio-based material and said to offer 23% more cushioning as well as generating three times as much forward motion when compared to previous generations of 4D midolses. The 4DFWD is the next chapter in Adidas' saga to create a responsive midsole out of thin air, literally: the Digital Light Synthesis manufacturing technology pioneered by Carbon uses digital light projection, oxygen permeable optics, and Carbon’s programmable liquid resins to create a functional midsole. (Image credit: Future) Adidas 4DFWD review: the tech

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