The women's Extra Warm Merino 3/4 Pants are made from 100% finest 190s merino wool yarn. The natural thermoregulation of merino wool ensures optimal heat and moisture regulation, especially in cool temperatures. A special knitting process ensures an ultra-soft feel and excellent stretchability. Merino wool is thermoregulating, odorless, easy-care and crease-free. The curled fibers form air chambers that trap body heat. This functional underwear offers maximum comfort and natural thermal protection for demanding outdoor activities, keeping the body dry and warm.