Stay warm and dry during your winter runs with the Columbia Women's Omni-Heat Base Layer Top. This top is made with Omni-Heat thermal reflective technology, which reflects and retains your body heat, keeping you warm even in the coldest temperatures. The fabric is also moisture-wicking, allowing sweat to evaporate quickly and keeping you dry and comfortable throughout your run. The fitted design and stretchy fabric provide a snug and comfortable fit, while the mock neck and thumbholes offer extra coverage and warmth. Whether you're running on icy trails or snowy roads, this base layer top will keep you warm, dry, and ready to conquer any winter run.