Our LIFA® Merino Midweight Pants perform in any type of cold weather activity so you can get outside and stay outside. We combined a 100% merino wool layer with our proven LIFA® Stay Warm Technology in a 2-layer construction. LIFA® Merino Midweight delivers all the breathable warmth of merino wool fibers, plus the unique moisture management properties of LIFA® fibers. These base layer pants are fitted for optimal mobility without bulk.