Stay warm and dry during your winter runs with the Columbia Women's Omni-Heat Base Layer Top. This top features Columbia's Omni-Heat thermal reflective technology, which reflects and retains your body heat, keeping you warm without adding bulk. The Omni-Wick fabric wicks away sweat and moisture, keeping you dry and comfortable throughout your workout. The four-way stretch construction allows for unrestricted movement, while the ergonomic seams provide a comfortable and flattering fit. Whether you're hitting the trails or running in the city, this base layer top will keep you warm, dry, and stylish.