A unique 2-in-1 base layer crew with a with a warm-breathable 100% merino wool exterior and a 100% LIFA® wicking interior. The versatile LIFA® Merino crew adapts to any type of cold weather. We combined a 100% merino wool layer with our proven LIFA® Stay Warm Technology in a fitted 2-layer construction. LIFA® Merino MIDWEIGHT delivers all the breathable warmth of merino wool fibers, plus the unique moisture management properties of LIFA® fibers. Fiber Content: Shell: 57% Merino Wool, 43% Polypropylene Care Instructions: Do not use fabric softener, Do not wring, Use wool detergent, Wash inside out FEATURES 2-layer construction