The Under Armour Women’s Sport Muscle Tank is designed to get you through your workouts. Made with mesh borders and dropped armholes, you will experience unrestricted movement and excellent ventilation. Under Armour’s signature Moisture Transport System quickly wicks sweat away from your skin for cool, dry comfort.Fabric: Polyester, ElastaneSlight dropped armholes allow for unrestricted mobilityMesh border offers enhanced breathabilityMoisture Transport System quickly dispels sweatGenerous fit for comfortable wear