The Under Armour Women's ColdGear® Authentic Half Zip Base Layer Top has been designed for complete comfort, total range of motion and greater breathability. Under Armour knows that stiff feeling of typical base layers and has created one that keeps you warm and dry without being bulky or riding up, so you can stay focused all season long. It features a dual-layer fabric with an ultra-warm, brushed interior and a smooth, fast-drying exterior as well as a 4-way stretch construction that moves better in every direction. This base layer top has an anti-odor technology that prevents the growth of odor-causing microbes. Its generous half zip front makes for easy layering while the dropped, shaped hem was made for enhanced back coverage. The Under Armour Women's ColdGear® Authentic Half Zip Base Layer Top has everything that you need this winter season!