Under Armour Heatgear Alpha Bra - Women'sThe Under Armour HG Still Gotta Have It Bra features super-soft, double-layer HeatGearŪ fabric that delivers superior next-to-skin feel and lasting comfort. Designed for mid-impact support so you can stay fit and focused. The soft and stretchy elastic band delivers a custom, comfort fit. Best for A to C cup sizes. Compression fit. HeatGear is best for weather between 75-100 degrees. 90% polyester/10% spandex. Imported.