This distraction-free tank is built with fabric that is smooth, soft, and ridiculously comfortable — oh, and it also protects you from the sun! UPF 30+ protects your skin from the sun's harmful rays. Ultra-lightweight HeatGear® is best for weather 75-100 degrees. Closed-hole mesh side panels deliver strategic ventilation. Moisture Transport System wicks sweat away from the body. Anti-odor technology prevents the growth of odor causing microbes. 100% polyester. Imported.