Set your new pace in these men's shoes built with ultra-cushioned boost. The shoes feature a revolutionary midsole that propels you forward using the energy from your footstrike for a light, fast ride that doesn't pack down over time. An 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.