These women's merino wool leggings are made from 100% ultrafine 17.5 micron merino wool to provide a soft, lightweight wearing experience. The 180g fabric weight ensures sufficient warmth while remaining breathable. Perfect for running, hiking, travel, and winter layering, these base layer leggings offer moisture control and temperature regulation in a natural way. The slim fit design delivers comfort without restricting movement, making them a reliable choice for both outdoor and casual wear.