Product details:

HeatGear Armour is Under Armour's original performance baselayer the layer you put on first and take off last. It's tight to wick away sweat and quick-drying to keep you cool. No athlete can go without it. Super-light HeatGear fabric delivers superior coverage without weighing you down. Material wicks sweat and dries really fast. 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. Wide, flat waistband that sits just right on your hips. 87% Polyester, 13% Elastane.