Stay warm, move free! Meet the women's classic thermal Merino 250 Base Layer Crew by Smartwool®, crafted for ultimate cold-weather performance. With a slim fit, cozy crew neck, and long sleeves, this base layer keeps you insulated and comfortable in every winter adventure. Enhanced with a new, improved fit, shoulder panels, and flatlock seam construction, it's designed to prevent chafing and ensure smooth layering.