HeatGear Armour is Under Armour's 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.

- HeatGear fabric is ultra-soft & smooth for extreme comfort with very little weight

- Strategic mesh panels for added ventilation where you need it

- 4-way stretch material moves better in every direction

- Material wicks sweat & dries really fast

- Ergonomic flatlock seams for added comfort & mobility

Sizing chart:

CHEST: Place tape measure under your arms at the fullest part of your chest, wrap around your body until your fingers meet and mark the measurement.