Crafted with our Thermotech Technology, Mountain Tek is built from passion and expertise to outfit your cold-weather adventures. Our high-quality, affordable basics keep you warm and comfortable, so your snowy escapes are about making memories, not battling the cold. Whether it's your first trip to the mountains or a family tradition, trust Mountain Tek for top-quality base layers designed for peak performance. The Mountain Tek Women's Performance Merino Base Layer Bottom combines high-performance fabric with the cozy warmth of Merino wool. Featuring Acclimate Dry fibers and spandex, it offers insulation, moisture-wicking, and flexibility. Merino wool traps heat, while Acclimate Dry fibers keep you dry. With midweight warmth, odor-blocking tech, and four-way stretch, these tights provide comfort and mobility for winter hikes or mountain adventures, perfect for staying warm without feeling weighed down. | Mountain Tek Women's Performance Merino Base Layer Bottoms