There are cycling socks, and then there are obsessively-engineered cycling socks from a company that already obsesses over the humble cycling sock. Meet the best-of-the-best, the Sock Guy SGX series. Seen here in the Sock Guy SGX6 Black version, the socks provide a compressive fit for optimal circulation, ribbed cuffs for comfort and breathability, and smart paneling for increased ventilation, reduced material movement, and less in-foot friction. Made of a fancy blend of polypropylene, nylon, and spandex, they keep strong the Sock Guy tradition of reinforced heels and toes for durability, too. As cycling socks go, these are genius. Available with 6-inch cuffs in sizes S/M and L/XL. Made in the USA.