Thorlos Women's  LRMXM Light Running Thin Padded Ankle Sock 73% THORWICK COOL Polyester, 26% nylon, 1% Elastic Turn Inside Out-Machine Wash-Use Liquid Fabric Softner Padding Level: Thin Cushion Key Benefit: Thorlos Protection = Maximum Comfort Guarantee - Your feet will feel better or your money back! Proudly MADE in the USA | North Carolina Women's specific design includes extra stretch yarn in the ankle and arch, a smaller heel pocket and a smaller custom toe box for a superior fit Constructed with THORWICK COOL fibers for superior moisture-wicking for drier, cooler feet. Cushioned arch for a better fit, more support and more comfort Low profile toe seam won't rub or irritate feet Low profile toe seam won't rub or irritate your foot Fiber Contents: 70% Exclusive THORWICK acrylic, 28% nylon, 2% spandex