Gear up for your next adventure with the Columbia Women's Omni-Heat Base Layer Bottoms. These synthetic base layer bottoms are made with Columbia's Omni-Heat thermal reflective technology, which reflects your body heat back to you for ultimate warmth. The fabric is also moisture-wicking and quick-drying, keeping you dry and comfortable during intense activities. The bottoms have a stretchy and contoured fit, allowing for unrestricted movement. Whether you're skiing, snowboarding, or hiking, these base layer bottoms will keep you warm and cozy all day long.