Stay warm and comfortable in cold weather conditions with the Arc'teryx LEAF Men's Wool Cold WX Bottoms AR. This midweight base layer bottom is designed with a Nylon Core Spun Merino Wool that wicks moisture away from the skin, enhancing thermal efficiency by retaining warmth even when wet. Exceptional anti-odor properties naturally come from merino wool. A gusseted crotch design permits a full range of unrestricted motion, increasing comfort and wearability.