UNDER ARMOUR. 1331679-001. GIRLS HEATGEAR ARMOUR LEGGINGS. BLACK. Fitted Next-to-skin without the squeeze. Super-light HeatGear fabric delivers superior coverage without weighing you down. Material wicks sweat and dries really fast. 4-way stretch construction moves better in every direction. Anti-odor technology prevents the growth of odor-causing microbes. Stretchy elastic waistband with wordmark wrap. 86 percent Polyester with 14 percent Elastane.