Swiftwick ASPIRE is engineered with firm compression and a thin profile for a responsive feel. The firm compression supports every contour of the foot to reduce fatigue during endurance activities. Lightweight Olefin fiber in a minimum cushion design is cool, wicks moisture and dries quickly to keep you performing at your best. A thin-channeled upper and mesh footbed design provides ventilation to increase breath-ability. Zero no-show cuff height sits below the ankle with minimal extension above the shoe.Swiftwick socks provide a critical performance link between you and your technical footwear. Every style is designed and crafted to bring more enjoyment to your chosen activity by focusing on the following fundamentals; Fiber First Moisture Wicking We carefully select high performance fibers that inherently move moisture. These fibers are sculpted into breathable designs to keep you dry.Contoured Compression FitOur goal is a perfect fit every time, so you can perform at your best regardless of your chosen activity. All of our socks are designed to support the contours of your foot which means no voids, bunching or blisters.QualityWe believe being Made in the USA results in better quality products with access to the latest technology. Perhaps the most rewarding element is the impact on our local community through job creation for American workers. Best of all, we know the people involved in our product from start to finish.SustainabilityFour sustainability principles drive our decision making: producing durable products that last, manufacturing in the USA to reduce garment miles, choosing materials and processes that minimize waste and energy consumption and finding uses for scrap materials to reduce our waste stream.Purchase includes 3 pairs of Swiftwick ASPIRE ZERO Socks