These socks have Stridetec wicking and a compression calf to maintain stretch and performance. These Pittsburgh Steelers socks also features sweat-wicking fibers, select terry pads, and patented heel strap and a unique blend of technical yarns. Strideline's digital ink technology and distinct S tag make these socks unique. Pair these team socks with your favorite team tee and hat for a one-of-a-kind outfit at the next big game! 32% Stridetec nylon, 20% Microfiber Polyester, 43% Comber Terry Cotton, 5% Blended Compression Yarn. Machine Washable. Imported. Officially Licensed.