Inspired and tested by the oldest guide service in North America! The Exum Crew Sock (as in the Exum Mountain Guides in Jackson Hole) from the folks at Vive Wear is the first high performance sock that is made with a patented combination of silver and copper nanoparticles. When activated by your normal foot perspiration, these nanoparticles work together to generate a microcurrent that promotes circulation and energizes your feet and legs. Developed by an orthopedic surgeon, these socks have undergone more than 10 years of research and clinical testing. Designed out of blend of baby alpaca and merino wool, they are soft, moisture wicking, breathable, and provide excellent temperature control (cool in the summer and warm in the winter). All important features when we’re doing our TrailblazerGirl thing! Feel the difference with the Vive Wear Exum Crew Sock!