Under Armour Heatgear Victory Tank - Girls' Grade SchoolThe Under Armour HeatGear Victory Tank for girls features a classic rib construction that improves mobility and accelerates dry time. Signature Moisture Transport System wicks sweat and dries quickly. Back mesh insets provide extra ventilation to keep you cool. HeatGear® works best in weather between 75 and 100 degrees. 94% polyester/6% spandex. Imported.