This lightweight womensUnder Armour Reactor Run Top ensures that you stay warm on your run. Designed with ColdGear fabric this shirt insulates your body in cold conditions without sacrificing breathability so you can perform your best.

* Flatlock seams prevent chafing from repetitive movements.

* ColdGear technology keeps you warm and comfortable.

* Dropped back hem adds coverage.

* Thumbholes stop sleeves from riding up.

* 95% polyester/5% spandex. Imported.