If you are looking for a cozy top that offers warmth and comfort this Montbell Merino Wool base layer is for you. At 3.9 oz. this top is made with the highest quality wool from New Zealand and offers superb moisture management, performance, and durability. Made with a fine gauge 18.5-micron fiber this Merino Wool feels extremely smooth and stretchy, allowing various recreational opportunities in the mountains. While hiking in colder autumn temperatures in Le Conte Canyon this top will keep you toasty around camp or while exploring different Sierra sights. Made for movement, durability, and warmth, this Montbell Merino Wool base layer is a must-have for any outdoor enthusiast seeking adventure in cooler temperatures.