Our premium thermal underwear for women is made from silky soft merino wool and with touch of LYCRA® for the perfect fit. Look hot and stay cool with our selection of underwear for women. Our thermal underwear for women is made from lightweight, odor-resistant merino wool making them perfect for long trips. Silky soft against your skin, our women's underwear is the perfect addition to your workout wardrobe. Ultra-lightweight and moisture wicking, merino wool releases body heat when you overheat. Used in layers, it traps warm air between your base layers, mid layers and outerwear, providing you with heightened comfort and warmth no matter what activity you're pursuing. Complete your layered look with our women's underwear and stay cool and dry in any environment. Be sure to check out our other merino wool clothing for women like t-shirts, sports bras, tank tops and more. Stock up on thermal underwear for women, today.