The mil-spec sport sock is the same sock knit for the US military, including the use of anti-microbial silver filament yarn knit into the heel, toe, and sole. Silver is proven to kill bacteria and promote moisture migration and is a game-changing technical addition to this super hard wearing cotton sock. For added performance and comfort, they go beyond military spec and added a compression band on the foot and additional arch support.
For those with military familiarity, the mil-spec name is appropriate. Constructed with durability reminiscent of military issue, the difference is the welcome dash of vibrant color. The socks differ from others in the company's product line that include extra padding similar to what used to be called tennis socks.