Thorlos Unisex EWH Walking Thick Padded Ankle Sock 72% THORWICK COOL acrylic, 26% nylon, 2% spandex Made in US Turn Inside Out-Machine Wash-Use Liquid Fabric Softner Padding Level: Thin Cushion Key Benefit: Thorlos Protection = Incredible 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