RUNNING SHOES CODED BY ATHLETES, FOR ATHLETES FOR A SMOOTH RIDE. Feel progress every time you lace up with adidas 4DFWD, 3D printed midsole technology, designed to move you forward. When a foot impacts the ground, it applies braking forces. The 4DFWD midsole reduces these forces by redirecting the impact into forward motion. With every step, 4DFWD compresses forward, providing a smooth transition and a unique running experience.