Not too hot and not too cold -- your tootsies will feel just right in these UltraTemp compression Ankle socks. The special fabric has molecules infused into the yarn to help keep you warm when temps start to drop. But when summer comes back around, the fabric wicks away moisture to help keep your feet cool and dry. And don't forget about the compression that helps provide temporary relief from minor muscle aches, pains, and muscle soreness. The perfect combination of comfort and care, these cushioned socks are a treat for your feet -- all year long. From Tommie Copper. Includes four pairs of UltraTemp compression Ankle Socks Fabric has molecules infused into the yarn to keep you warm Infrared technology helps provide warmth to the socks Compression helps provide temporary relief from minor muscle aches, pains, and muscle soreness; compression helps reduce recovery time of muscles Patented Copper Znergy technology: copper- and zinc-infused Anti-odor technology remains in the fabric for up to 50 washes Fabric wicks away moisture, helping to keep your feet cool and dry UltraGuard Technology means the socks take longer for a hole to form than a sock without this technology Abrasion resistant Fits calf with up to 20" circumference Content: 91% polyester/5% spandex/4% other fibers Care: machine wash cold, tumble dry low Imported