The DeFeet "Flying D" logo on these socks is the badge worn by all of DeFeets top athletes. This model sports the popular 5" cuff. The Aireator is the airflow design sock that changed how modern endurance socks are made. With its trademark venting mesh weave foot, durable StayFast cuff and plated heel & toes that wear like iron, the Aireator guarantees long-lasting performance. Made with CoolMax EcoMade, the fiber that is made from recycled resources.
Fabric: 60% Nylon, 39% CoolMax EcoMade, 1% Lycra