Run long and proud with the Thorlos Running Micro-Mini 3-Pair Pack. Sold as a three-pair pack. No show sock sits below the ankle. Running Protection Level 3: designed to help protect your feet from the damaging effects of impact, shear and blistering common to running/jogging. Wear this product when fitted with new shoes. Heavyweight padding at ball and heel provides protection against shock, impact and shear forces. THOR-LON throughout the body of the sock wicks moisture, keeping feet drier and reducing blisters. Lightweight padding in arch provides protection and allows for better fit and arch support. 87 percent thorlon acrylic, 12 percent stretch nylon, 1 percent spandex Machine wash cold. Made in the U.S.A. Made in the USA.