The versatile LIFA Merino crew keeps you warm and dry during any type of cold weather activity, so you can get outside and stay outside longer. We combined a 100% merino wool layer with our proven LIFA fiber technology in a 2-layer construction. Our unique performance LIFA Merino fabric delivers all the breathable warmth of merino wool fibers, plus the unique moisture management properties of LIFA fibers. It excels at technical performance. Its also super-soft and comfortable.