Mission Pro Merino Socks are made in Italy from an engineered blend of yarns including a fine Merino wool, Elastane and nylon to provide the perfect balance of breathability, stretch and durability. Naturally anti-bacterial, Merino wool has the unique ability to keep you cool and dry during the summer months and warm as the temperatures drop.An upper ribbed knit construction perfectly supports the calf and elasticity wraps the feet making the socks ideal for the most strenuous of pursuits. While designed for high-output activities, the low-key branding allows them to be used day to day for nearly any use.