Stay cool and shine bright during workouts in the dark with the Brooks Carbonite Tank. Brooks uses 3M™ Scotchlite™ Carbon Black Stretch reflectivity in critical motion zones, which helps drivers recognize you as a runner in motion up to 600 feet away. The lightweight DriLayer fabric wicks sweat super fast — it feels dry in under six minutes! — to keep you cool in hot weather. This tank is made with recycled fabric equal to 12 plastic water bottles.