Swiftwick's most popular running sock and a great no-show running sock. The ASPIRE™ is engineered with firm compression and a thin profile for a responsive feel. Firm compression supports every contour of the foot to reduce fatigue during endurance activities. Zero cuff height sits below the ankle with minimal extension above the shoe.
55% Nylon / 40% Olefin / 5% Spandex
Made in the USA!