Dahlgren Halfpass Socks, Eggplant, Medium 75% Polyester, 23% Nylon, 2% Spandex Made in US Patented DriStride technology absorbs transfers and removes moisture keeping feet drier and more comfortable all day long Light cushion under the foot for all day comfort Cushion free body provides thin comfort that doesn't interfere with fit Alpaca/Merino wool in wicking channels absorbs moisture; ThermaDri Hydrophobic transfers moisture out of sock keeping feet drier, more comfortable Made in the USA; TOE/HEEL/WICKING CHANNELS: 55% Merino Wool, 27% Nylon, 18% Alpaca; BODY: 75% Polyester, 23% Nylon, 2% Spandex