There's fast, and then there's UA Flow fast. Lightweight, rubberless, and durable, our newest cushioning gives a close-to-the-ground, grippy feeling of speed. The kind of speed that feels like you've got the wind at your back. Best for: Race training, up-tempo days & track workouts with a light, fast feel CONNECTS TO UA MAPMYRUN™: tracks & analyzes your running metrics to help make you a better runner Warp™ upper optimizes containment with lightweight lockdown & allows maximum breathability One-piece Flow midsole provides responsive & long-lasting cushioning Flow technology eliminates the rubber outsole, creating a more lightweight & seamless ride on any surface Outsole material is super-durable & increases ground traction