Under Armour ColdGear Infrared Legwarmer Women's Running Bottoms - AW15 Amazingly soft French Terry fabric - Helps circulate heat away from the body. ColdGear Infrared lining - Uses a soft, thermo-conductive inner coating to absorb and retain body heat. Signature Moisture Transport System - Wicks sweat to keep you dry and light. Slim, straight leg fit - Through the hip and thighs with a generous, slouchy hem. Soft, covered elastic waistband - For the perfect fit.