If you have a passion for the outdoors, cold weather isn't going to deter you from enjoying it. Ensure you stay warm and dry with a Smartwool Women's Intraknit Thermal Merino Base Layer Crew, suitable for use as a base layer or on its own. This simple yet stylish shirt is crafted with a blend of Merino wool, polyester, and elastane, which makes it soft, breathable, flexible, and moisture-wicking. It is designed to provide a slim fit and has mesh venting for enhanced comfort.