Made to be worn next to our skin, the Kari Traa Silja Half-Zip top is a classic merino wool baselayer. Merino wool makes the best baselayers because it's naturally odor-resistant, insulates when wet, wicks moisture, dries quickly, and feels soft against our skin. Those natural attributes keep us feeling warmer, drier, and more comfortable in chilly weather, whether we're snowboarding, hiking, or adding some warmth beneath our everyday clothes.