Alpaca technology engineered to provide ultimate comfort and performance. These socks provide dry, long-lasting comfort! Our special blend of the finest Alpaca yarn with microfiber ensures optimum performance and durability. Naturally water-resistant, Alpaca is a naturally soft fiber with inherent temperature control and wicking properties. With a more enhanced thermal control alpaca keeps feet active and comfortable in a variety of demanding lifestyles. Lightweight leg with elastic for the best fit and support, ultra-cushioned sole for impact and shock absorption, ribbed arches for added support, reinforced toe and heel for durability, and mesh stitch for improved airflow and breathability.