Thorlos Unisex WGMX Work Padded Ankle Sock Fiber Contents: 85% Exclusive THORLON, 9% stretch nylon, 6% spandex Made in USA Padding Level: Moderate Cushion Key Benefit: Maximum Protection = Maximum Comfort Guarantee - Your feet will feel better or your money back! Proudly MADE in the USA | North Carolina 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 Spandex over-the-calf top holds in place all day Constructed with THORLON fibers for superior softness, resilience, durability, and moisture-wicking for drier, better feeling feet Cushioned arch for a better fit and less pressure on the feet for more comfort Low profile toe seam wont rub or irritate feet