Our new Women's Intraknit™ Merino 250 Thermal Colorblock Crew uses 100% Merino yarn that provides the full power of Merino with unparalleled sweat management, insulation, thermoregulation, and odor control for all of your days skiing, hiking, and exploring on colder days. Insulated terry loops seamlessly paired with mesh ventilation in gender-specific zones balance warmth and breathability, while its durable 3D-mapped construction results in a near-custom fit and freedom of movement. And knit-in reflectivity means you'll be seen when you're active on early mornings or late nights. Get into some of our base layer clothing for cold weather and get after it.