Protective and responsive for training at top speed. Fast, propulsive cushioning The midsole is configured with nitrogen-infused, lightweight DNA FLASH cushioning that returns energy and adapts to your stride. Fast transitions Rapid Roll technology - the unique curving of the heel and toe - propels you forward for effortlessly fast transitions. More foam, more miles Substantial midsole foam helps absorb impact on your toughest workouts — so you can take on another hard training session sooner.

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