Reach new PRs in your updated Men's Nike React Infinity Run Flyknit 3 SF running shoes. With more breathability and comfort than its predecessors, added Flyknit technology through the upper allows your foot and airflow to move freely while keeping that locked in feeling. Further, improvements in the padding of the shoe include more cushion in the collar and a higher foam underfoot, so you're literally getting a plush hug as you spring forward and touch down. The new colorway makes every run in your React Infinity Run Flyknit 3 SF feel like a party.