Feel the power of your best run in these women's running shoes built with ultra-cushioned boost underfoot and a foot-hugging upper. A revolutionary midsole propels you forward using the energy from your footstrike for a light, fast ride that doesn't pack down over time. An adidas Primeknit upper adapts to the changing shape of your foot through the gait cycle, and a supportive cage secures a lockdown fit. The elastic STRETCHWEB outsole flexes to adapt to the way your foot hits the ground.