The 4" cuff Jitterbug is an Areator model in our new "High Rouleur" Collection. Rock this sock anywhere you roll. 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.