These Basketball Crew 3-Pair Pack socks from Thorlos® will keep you enjoying the court longer and stronger. Sold as a three-pair pack. Crew length sock sits at calf. THOR-LON® top with added spandex provides protection and better fit. THOR-LON® fibers is soft, resilient, durable, and moisture-wicking for drier, better feeling feet during the game. Extra THOR-LON® provides a maximum basketball density padding to provide better durability, protection against shock, impact and shear forces during quick starts, stops, and twists. Padding under the ball, heel, and up the Achilles tendon provides maximum protection from friction, the primary cause of blisters, and impact protection where needed most. 88% THOR-LON® Acrylic, 10% stretch nylon, 2% spandex. Machine wash warm. Made in the USA. Low profile toe seam won't irritate your foot during intense play. Made in the USA.