Optically illusive, this design draws attention and doesn't let it go. Framework brings a foundation of elegance and structure to already strong legs. The Aireator® platform goes well beyond typical sock construction. It's the original airflow design that changed how modern endurance socks are made. With it's trademark venting mesh weave instep, durable 6" StayFast cuff, plated heel & toes that wears like iron, the Aireator guarantees long-lasting performance. Made with COOLMAX® Ecomade, the fiber that is made from recycled resources.