The Le Bent Le Sock Ultra Light Ski Sock is perfect for ski touring because it naturally manages moisture and provides streamline support for active uphill skiing. The Le Sock is a rayon bamboo, merino wool, nylon, elasic blend. Each material providing unique benefits: bamboo for moisture wicking, wool for natural insulation, added nylon for a reasonable price-point, and elastic for a stretchy 'hug your foot' feel. The sock is thin where support isn't needed and firm where added cushion is: the Achilles, ankle, and instep. Grab these socks for comfortable days in the mountains.