Swiftwick- VISION FIVE | Socks Built for Cycling | Creative Designs, Fast Drying, Cushioned Crew Socks SIGNATURE OLEFIN FIBER: Carefully selected lightwieght fiber that wicks moisture and will keep you dry. CONTOURED COMPRESSION FIT: Designed to support the contours of your foot. No voids, bunching, or blisters. BREATHABILITY: Built in channels release heat and moisture to improve breathability to keep your feet cool. CHARITABLE INITIATIVES: We strive to change lives one sock at a time by giving a percentage of VISION sales to charitable initiatives. MADE IN THE USA: Swiftwick Socks are designed and crafted in the USA