Under Armour Women's ColdGear Infrared Thermo Tights Brushed Stretch Fleece Fabric - Offers a smooth, fast-drying exterior with a brushed, heat-trapping interior, helping you stay dry and warm. Signature Moisture Transport System - Wicks sweat away from the body, keeping you cooler and drier. 4-way Stretch Fabrication - Improves mobility, while helping to maintain shape. Wide Yoga-Inspired Waistband - Delivers superior coverage for a super-flattering silhouette. Hidden Waist Pocket - Provides safe and secure storage of essential valuables.