A naturally odor-fighting, breathable, and sweat-wicking cycling base layer constructed from a performance merino wool blend to keep you warm, even when wet. Breathability - Powered by the natural magic of merino wool, our long-sleeve winter base layer is highly breathable. Fast Dry - The Element Merino Base Layer dries quickly to keep sweat from cooling your core body temperature. Fit - Elastic fabrics and an ergonomic silhouette provide a slim fit that pairs well beneath any cycling jersey. Lightness - For an added touch of warmth, the Element Merino Base Layer is just a bit thicker than our mild-weather base layers. Temperature - Whether it's winter, early spring, or late fall, the Element Merino Base Layer is ready for cool conditions. Thermo - Balancing warmth with weight and breathability, this long-sleeve base layer provides a moderate level of insulation.