What if ski socks could provide all the thermal insulation you&';ve come to expect from Wool, yet provide the superior sweat management and low friction performance of a true sport sock? Warmth for the downhill, sweat defying performance for the uphill, this new-to-the-world DUAL SURFACE(TM) Precision Blended Sock truly sets the bar for backcountry worthy footwear. Features High-performance sweat-wicking fibers on the inside keep feet warm and dry all day long Fine-micron Merino wool on the outside buffers the hot/cold extremes, and stays warm even when wet Firm double cuff Left and Right Construction Strategically placed cushioning to enable all day comfort Product Care While all of our products are designed for machine care, we recommend protecting your investment through minimally damaging processes. The following are recommended: Machine Wash Cold Hang Dry No Fabric Softeners