Outdoor Research - Tundra Aerogel Sock - Kalamata

The Outdoor Research Tundra Aerogel Socks keep your feet cozy and warm inside your sleeping bag or kicked back on the couch. These puffy socks feature a compression-resistant PrimaLoft® Aerogel insert that acts as a thermal barrier between your feet and the elements, with a smooth polyester suede sole. Plus, an ankle cinch top keeps your socks in place throughout the day.