UA Heatgear Armour 2.0 Compression Leggings Tough, lightweight HeatGear fabric. Stretch-mesh gusset and inseam panels deliver strategic ventilation. Updated ergonomic design keeps seams off high abrasion areas. 4-Way stretch fabrication allows greater mobility. Moisture Transport System wicks sweat and dries fast. Anti-odor technology. wider, 2" elastic waistband.