In April 2017, adidas unveiled its groundbreaking Futurecraft 4D runner in an exclusive event held in New York City, offering a sneak peek before its official release in January 2018. As a special gesture, 300 limited edition samples of the black and Ash Green colorway were gifted to attendees. What sets this shoe apart is its revolutionary midsole, which is the result of Digital Light Synthesis technology. By combining light, oxygen, and programmable liquid resins, 3D-printing is utilized to create the midsole, significantly reducing production time and minimizing waste from traditional prototyping and molding methods. This technology also allows for the customization of the midsole's lattice structure based on individual athletic data, utilizing a staggering 20,000 struts. The Futurecraft 4D runner showcases a sleek black Primeknit upper accented with reflective Three-Stripes on the side panels, cleverly designed ventilation zones to enhance breathability, and a durable Continental rubber outsole.