Rubber sole 3D-printed 4D midsole Continental Rubber outsole Forward-angled lattice You run. That's where the adidas Ultra 4DFWD shoes come in, combining our adidas 4D midsole with the beloved adidas PRIMEKNIT+ upper. Their unique lattice 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. This shoe's upper is made with a high-performance yarn which contains at least 50% Parley Ocean Plastic - reimagined plastic waste, intercepted on remote islands, beaches, coastal communities and shorelines, preventing it from polluting our ocean. The other 50% of the yarn is recycled polyester.