Under Armour Lady Catalyst Capri Running Tights Signature Moisture Transport System - wicks sweat away from the body, keeping you cooler and drier. Thermal Properties - Making sure your body temperature stays warm when your out in the cold. High elastane content - provides excellent support with great stretch and recovery Anti odour agents - So you can keep hygienic. Flat Locked Seams - helps to reduce the chance of chaffing whilst working out.