Tommie Copper Men's Performance Exo Athletic Over the Calf Socks 62% Nylon, 30% Copper Nylon, 8% Spandex Made in US Cushion heel and toe designed to the contours of the foot for extraordinary comfort and decreased impact dampening Ergonomic design keeps the top band from rolling or pinching Seamless toe eliminates friction and reduces rubbing Copper znergy blend eliminates the growth of microbes on the fabric and provides UPF 50+ protection Helps relieve aches & pains