Signature moisture transport wicks moisture, accelerates evaporation. ArmourBlock® technology neutralizes the microbes that cause odor before there is any odor at all, which results in moisture transport with maximum scent suppression. Strategic Cushioning built into the sock for maximum shock absorption and protection. Embedded arch support reduces foot fatigue, bolsters circulation. Contoured "Y" heel for comfort and perfect fit. Flex zone prevents bunching. Polyester/Nylon/Spandex. Imported.