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. It’s also super-soft and comfortable.