These socks are so effective at keeping feet cool, dry and comfortable, they’re preferred by U.S. military and law enforcement personnel. They feature a special blend of 83% olefin for mildew and sunlight resistance; 13% Nylour™ for strength and abrasion resistance; and 1% spandex for stretchability. The fabric is treated with antimicrobial ArmourBlock® that kills odor-causing microbes. Well-placed mesh vents transfer moisture to the outside of the sock for quick evaporation. A special arch support system gives them a snug fit, while bolstering blood circulation. Cushioned footbeds, seamless/reciprocated toes and heels for a great fit. Per pair. Imported. Sizes:M(4-8), L(9-12), XL(13-16). Colors: Black, Foliage Green.