3D-printed 4D midsole Continental Rubber outsole Forward-angled lattice You run. We innovate to make it feel easier. That's where the adidas Ultra 4DFWD shoes come in, combining our adidas 4D midsole with the beloved adidas PRIMEKNIT+ upper. Their unique lattice midsole structure compresses at impact, redirecting your energy into forward motion. Whether you're running near or far, fast or slow, you get a smooth ride that feels more like gliding than pounding on pavement.