The Brooks Carbonite Socks are the perfect performance socks for wearing when it’s dark out to stay visible. These socks feature 3M™ Scotchlite™ Carbon Black Stretch reflectivity detail in critical motions zones to help drivers recognize you as a runner in motion from up to 600 feet away. These socks are made with moisture-wicking DriLayer® yarn, which, combined with the mesh zones for ventilation, lets out excess heat for a more comfortable run. The mini-crew socks have targeted arch compression for a smooth, snug fit. The seamless toe and full underfoot cushioning make sure that you are comfortable throughout your run.