Adidas 4DFWD 2 redefines forward motion combining the unique, groundbreaking innovation of a 3D printed midsole with a new upper construction and a Continental outsole for extra grip. With every stride, the adidas 4DFWD 2 midsole compresses forward, reducing braking forces and transforming the impact energy into forward motion. The result is a smooth ride with less stop-and-go pounding on pavement. The Continental outsole grippy rubber outsole provides traction on wet and dry surfaces to keep you going in all conditions, and the adidas PRIMEKNIT upper wraps the foot with a new fit that enhances movement. The PRIMEKNT and the stripes are reflective while the midsole offers innerglow light reflection.