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Icebreaker’s versatile women's merino wool first layer collection makes the perfect addition to any active summer wardrobe. Our unique layering system includes everyday staples such as women's wool long underwear and leggings that are designed to work together to regulate your temperature, no matter the environment. Our women’s merino wool first layer collection is comprised of t-shirts, skirts, dresses and shorts that are made of our lightest, naturally temperature-regulating merino wool. Our women's wool long underwear collection breathes to prevent overheating and clamminess. Designed to keep you cool and comfortable during hot days, our women's merino first layer collection is perfect for every active woman. Check out our women’s base layers for more layering options or stay cool with Icebreaker’s collection of t-shirts & tanks. Or stop by the rest of our women’s department for all your wardrobe needs. Stay cool with the freedom to move with Icebreaker's women's merino wool first layer collection.