High-performance ankle length socks made with Aero Sock technology for the ultimate aerodynamic advantage. The cuff also uses 82% high speed polyester, 18% elastane, and an accordion style weave, creating a breathable and very technical sock that won't slide down the leg. The foot is produced with 80% polyamide, 20% elastane, and Q-SKIN fiber, ensuring odor control, freshness, and durability. With a reinforced heel and toe area for added strength, they also have a special weave across the bridge of the foot, maximizing breathability and that all-important moisture control. Designed with a balance between lightness, stretch, and strength. Technical detail The Aero Sock technology is comprised of warp knit stretch fabric with wind channels, offering superior aerodynamic features. The Q-SKIN® fiber takes care of skin by enabling and maximizing breathability, freshness, hygiene and comfort to the wearer. When our bodies sweat molecules produced by cycling, the silver ions are activated as the sweat meets the technical fiber. The specially designed fabric weave across the upper area of our new Aero socks allows a great adaptation to the leg, minimizing the chance of the socks sliding down so you can focus on your ride.