The North Face Women's Momentum Thermal 1/2 Zip (A5UC) is the perfect layer for chilly runs. Fabricated from super soft polyester with FlashDry for breath-ability. The 1/2 Zip features a secure back pocket and inner mitts. The 1/2 zip is outfitted with 360-degree reflectivity to help you be seen by drivers. The 1/2 zip is available in 5 bold colors this season.