Wore once, for 2 miles, but were a little too narrow for my foot. Was great for me in the next size up. Fast!!! From site: What's it do? Tested by some of the world's fastest runners, these marathon shoes were built to hit race-winning speeds. A full-length, carbon plate adds propulsion, while rubberless UA Flow cushioning makes it light and grippy. Best for: Long & mid-distance races, like marathons, with a light, fast, explosive feel Warp 2.0 upper optimizes containment with lightweight lockdown & allows maximum breathability TPE sockliner for enhanced resiliency & bounce on every footstrike Full-length carbon fiber plate delivers explosive lift offs with every stride Flow technology eliminates the rubber outsole, creating a more lightweight & seamless ride on any surface Outsole material is super-durable & increases ground traction 360° reflectivity for added visibility in low-light runs Regular Style #: 3027205 Offset 8mm Weight 8.2 oz Lace Type : Standard Tie