Make sure you stay warm when you train on colder days wearing the Under Armour Womenâs Tactical ColdGear Infrared Base Leggings 29 in. These leggings have a ColdGear Infrared lining that traps in your natural heat to keep you feeling toasty warm, and the moisture-wicking technology helps you stay cool and dry. Under Armour Womenâs Tactical ColdGear Infrared Base Leggings 29 in Black/Black, Small - Women's Athletic Performance Bottoms at Academy Sports