HeatGear® Armour is the original performance baselayer, the one you put on first and take off last. So we made it extra comfortable by wicking sweat and stretching so you can move no matter what. Features super-light HeatGear fabric delivers superior coverage without weighing you down, four-way stretch construction moves better in every direction, anti-odour technology prevents the growth of odour-causing microbes, ergonomic flatlock seams deliver a comfortable, chafe-free fit and high-rise encased elastic waistband sits just right on your hips.