The Arc'teryx Women's Rho LT Zip Neck is a high-performance base layer top that is designed for cold weather activities. It is made with a blend of polyester and elastane, providing a comfortable and stretchy fit. The Torrent fabric offers excellent moisture-wicking and quick-drying properties. The zip neck design allows for easy ventilation, and the gusseted underarms provide a full range of motion. Whether you're skiing, snowboarding, or mountaineering, this top will keep you warm and dry.