Under Armour ColdGear Authentics is the women's running shirt made of warm and soft fabric with a brushed interior, designed to keep you at peak performance even when the cold hits.
ColdGear
UA Cold Gear uses a two layer microfiber. One layer is the classic satin exterior "polyarmour", the other is a less smooth "brushed" fiber. The latter quickly wicks sweat from the skin and keeps the body warm and dry without weighing it down. The body temperature remains constant, thus avoiding cold shocks that could generate muscle injuries of various kinds.