Thorlos Men's AMX Fitness Thick Padded Ankle Sock, White, Medium 69% Exclusive THORLON acrylic , 23% nylon, 5% spandex, 2% polyester, 1% Other Fiber Padding Level: Moderate 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 Thorlos clinically-tested padding under the ball and heel provides maximum protection from friction, the primary cause of blisters, and impact protection where needed most Constructed with THORLON fibers for superior softness, resilience, durability and moisture-wicking for drier, better feeling feet Flat knit instep and cushioning in arch for better fit, more support and less pressure on the feet for a more comfortable workout Low profile toe seam wont rub or irritate your foot Fiber Contents: 72% Exclusive THORLON acrylic, 23% nylon, 5% spandex