The Streaker 2. 0 Racer Tank Top is suitable for most physical activities, and is cute enough to wear out afterward too. Under Armour built this top with synthetic material that wicks away perspiration to keep you feeling fresh, and gave it a mesh rear panel to ensure you can get plenty of airflow. From the cinched racerback to the scalloped hemline, this top has obviously been constructed with style in mind, but doesn't sacrifice performance, as it's designed to ensure you can move freely throughout your workout.